Mdcat Mock test free online whole XII

1. Paragraph:

The internet has revolutionized the way people communicate, access information, and conduct business. With the advent of the World Wide Web, information became easily accessible to anyone with an internet connection. Social media platforms have connected people across the globe, allowing them to interact, share ideas, and form communities. Online shopping and e-commerce have transformed the retail industry, offering consumers convenience and a wide array of products at their fingertips. Additionally, the internet has provided opportunities for remote work, enabling individuals to collaborate and contribute to projects without being physically present in an office. However, concerns regarding data privacy, online security, and the spread of misinformation have also emerged as challenges that need to be addressed to ensure a safe and reliable digital environment.

Question:. What has revolutionized the way people communicate, access information, and conduct business?

2. What are some challenges that emerged with the advent of the internet?(Read the above paragraph to answer the question)

3. Synonym for "proficient":

4. Synonym for "angry":

5. Antonym for "simple":

6. Antonym for "transparent":

7. The train __________ at 6:30 AM.

8. They __________ the news on TV every evening.

9. If I __________ enough money, I would buy a new car.

10. If she __________ harder, she would have passed the exam.

11. The cat is hiding __________ the bed.

12. The restaurant __________ be crowded, let's make a reservation.

13. She __________ speak French fluently.

14. Choose the correct sentence:

15. Which sentence is grammatically accurate?

16. Choose the grammatically accurate sentence:

17. He doesn't agree ___ his girlfriend about politics.

18. Alexandar is looking ___ a new job.

19. Which one following gland is not occur in  pair.

20. Which one of the following is largest endocrine gland.

21. If vitamin d deficiency occur in adult what happen.

22. Movement of eye occur in which second

23. syphilis is disease cause by.

24. How many egg and sperm are produced by primary oocyte and primary  Spermatocyte respectively

25. How many sperms produced by a healthy man per /day ?

26. Preganancy maintained by ____ harmone:

27. Second largest part of brain is

28. How many bones are there in a hand ?

29. The occurrence of similar traits or characteristics in unrelated species due to similar environmental pressures is known as:

30. The development of antibiotic resistance in bacteria is an example of:

31. The DNA molecule is composed of building blocks called:

32. Which genetic disorder is caused by a mutation in the hemoglobin gene, resulting in misshapen red blood cells?

33. Which of the following genetic disorders is caused by a missing or non-functional X chromosome in females?

34. The observable traits or characteristics of an organism are known as its:

35. The process by which a single cell divides to produce two genetically identical daughter cells is known as:

36. The endocrine gland often referred to as the "master gland" due to its regulatory role in the endocrine system is the:

37. The hormone responsible for the regulation of sleep-wake cycles and produced by the pineal gland is:

38. The space between two neurons where chemical communication occurs is called the:

39. The type of neuron responsible for transmitting signals from sensory receptors to the central nervous system is called:

40. The hormone produced by the adrenal glands in response to stress, increasing blood glucose levels and suppressing the immune system, is:

41. The part of the brainstem that controls vital functions like breathing, heart rate, and blood pressure is the:

42. The condition resulting from an underactive thyroid gland, characterized by fatigue, weight gain, and cold sensitivity, is called:

43. The hormone responsible for stimulating uterine contractions during childbirth and milk ejection during breastfeeding is:

44. Which of the following is a connective tissue found in joints that provides a smooth surface for easy movement?

45. The hormone responsible for regulating calcium levels in the blood and promoting bone formation is:

46. Which type of muscle is responsible for involuntary movements, such as peristalsis in the digestive system?

47. The muscle responsible for involuntary contractions of the heart is called:

48. Which of the following is NOT a function of the human skeletal system?

49. The neurotransmitter responsible for transmitting signals between nerve cells and muscles in the neuromuscular junction is:

50. Which of the following bones is NOT a part of the axial skeleton?

51. The joint found between the skull bones is an example of which type of joint?

52. The skeletal system in humans is primarily composed of which type of tissue?

53. Which of the following tissues is responsible for providing structural support to plants?

54. Mendel perform his famous experiment of heredity on:

55. Separation of gene is called :

56. Basic units of inheritance are :

57. Mendel’s hereditary factor “genes” are located on:

58. Archacopteryx was a fossil:

59. Cells remain undifferentiated, which later on give rise to egg cells or sperm cells are:

60. The theory of organic evolution given by______

61. Vermiform appendix in man is a small finger-like reduced____.

62. Muscles found vestigial in man:

63. Tests of blood sera have shown the relationship between man and:

64. It is believed that life may have begun deep in the water especially in hot spring called:

65. Observe the below pedigree of a family showing inheritance of haemophilia. What is the genotype of individual II-3 and II-5?

(hint: female is hemophilic)

66. Cells which differentiate into various tissues and form different organs of the body are:

67. Which one of the following is a recessive trait in pea plant?

68. Which among the following genotypes refers to dihybrid organism?

69. Multiple alleles are produced by:

70. The dominant allele can be represented by:

71. Gene linkage can be detected by performing:

72. Which hormone stimulates process of ovulation

73.

In human female only one ovum is usually discharged from the ovary at one time it is called

74.

The uterus opens into the ________________ through cervix.

75. The animals which lay eggs are called

76.

One of the following is NOT a method of asexual reproduction.

77. _____________ is(are) basis for asexual reproduction.

78.

Which part of the brain is the set of conscious activities?

79.

Nerve cells can send messages more faster if they have

80.

Which of these is true when a neuron is at rest

81. Nerves impulses always travel to the brain through _____ fibers.

82. ____________________ connect different neurons together, send information between neurons. They have short dendrites and short axons

83. ____________________ send information from the C.N.S to the Effectors.

84. The first line of defense against pathogen is

85. If bio-rhythm occurs with a frequency of 24 hours, it is called

86. A cell or group of cells specialized to detect changes in the environment and trigger impulses are known as:

87. Colourless compounds are given by:

88. Transition metal compounds are coloured due to:

89. Which one is ferromagnetic?

90. IUPAC name for complex compound [Cr(NH₃)₄(CN)₂]ClO₂ is:

91. Formula for “Plaster of Paris” is:

92. General formula for acid anhydride is:

93. Homologous possess same:

94. A hydrocarbon with fifteen carbon atoms, two double bonds & two triple bonds possess molecular formula:

95. Which of the following is also called an olefin?

96. Which of the following does not contain a carbonyl group?

97. How many isomers of C₅H₁₂ are there?

98. Propene on addition of HBr forms:

99. Most reactive among following is:

100. Raney nickel is an active form of nickel used as catalyst in:

101. C-C bond length in benzene is:

102. Number of sigma & pi bonds in benzene is respectively:

103. Oxidation of toluene with KMnO4 yield:

104. Propene on addition of HCl forms:

105. C-C bond length in benzene is:

106. Which of the following compound will show metamerism?

107. Benzene is a ____ compound.

108. Benzene reacts with bromine in the presence of FeBr3 to give:

109. The hybridization of carbon atoms in the benzene ring is:

110. Which of the following is a common solvent used in the purification of benzene?

111. The boiling point of benzene is:

112. The reaction of benzene with nitrenium ion (NO2+) forms:

113. which one of the following is most reactive :

114. What will be the products when reactants are alcohol & thionyl chloride in the presence of pyridine?

115. Which alkyl halide has the highest reactivity for a particular alkyl group?

116. Which one is not a nucleophile?

117. During SN2 mechanism carbon atom changes its state of hybridization as

118. What is the order of kinetics in the SN1 mechanism?

119. When phenol is treated with excess bromine water it gives

120. Dehydration of alcohol is an example of

121. The alcohol which does not react with Lucas reagent is

122. What is the correct order of boiling points of alcohols having the same number of carbon atoms?

123. Which of the following reaction is not shown by ketones?

124. The carbon atom of the carbonyl group is

125. Formalin is _______ % solution of formaldehyde in water

126. Which of the following compounds will react with Tollens reagent?

127. Which of the following reagents will react with both aldehydes and ketones?

128. The common thing in phthalic acid and oxalic acid is that both are

129. The irritation caused by red ants bite is due to

130. Which acid is the manufacture of synthetic rubber?

131. In the formation of Zwitterions proton goes from

132. which one of following is non typical transition elements

133. what is electronic configuration of Cr.

134. which period of element belong to purely S block element

135. How many elements of S- block in periodic table.

136. which element in 2 group have low melting point.

137. which on of following have highest ionisation energy.

138. which one of the following trend of atomic radius is correct.

139. potassium rubidium Cesium when react with oxygen which types of oxides form.

140. Na is element of First group which share common properties of element of Second group then name of element.

141. Which of the following is true for closed system:

142. Thermodynamics is the study of relationship between:

143. A thermos-dynamical system is changed from state (P1,V1) to (P2, V2) by two different processes. The quantity which will remain same will be:

144. By rubbing the objects together their internal energy :

145. 110J of heat is added to a gaseous system , whose internal energy change is 40 J , then the amount of external work done is :

146. Two point charges =4mC and -1mC are separated by a distance of d. The ratio of force acting them will be :

147. The value of K depends on

148. Which of the following is the SI unit of potential ?

149. Electric field intensity is a:

150. Electric field lines are :

151. The unit of capacitance is :

152. Electric field can deflect by

153. the dielectric constant K of an insulator can be :

154. If the potential difference across the two plates of a parallel plate capacitor is doubled then its energy stored in it will be:

155. Two charges q1 and q2 both are increased by two times, then will be effect on their force?

156. Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called

157. A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is

158. What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N?

159. When a particle of charge q and mass m enters into a uniform magnetic field B moving with a velocity v perpendicular to the direction for the field it describes a circular path of radius

160. Two parallel wires carrying currents in the opposite directions

161. A magnetic compass will be deflected if it is kept near a

162. A magnetic field:

163. Which one of the following material is most suitable for making core of an electromagnet?

164. The relationship between Tesla and smaller unit Gauss of magnetic induction is given by

165. A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is

166. Heating a magnet will:

167. The relativistic energy E is equivalent to a relativistic mass given by

168. Which one of the following radiations has the strongest photon?

169. The linear momentum of a photon is

170. A device based on photoelectric effect is called

171. If a material object moves with speed of light its mass becomes

172. As the temperature of the black body is raised the wavelength corresponding to the maximum intensity

173. The rest mass of a photon is

174. In ComptonIn Compton scattering, the change in wavelength is maxed ifscattering, the change in wavelength is maxed if

175. In Davisson-Germer experiment the diffracted proton from crystal shows

176. The uncertainty in momentum & position is due to its

177. The energy radiated is directly proportional to the fourth power of Kelvins temperature is

178. Compton effect proves the

179. In hydrogen spectrum which one of the following series lies in the ultraviolet region?

180. Photon of highest frequency will be absorbed when transition takes place from

181. Excited atoms return to their ground state in

182. Which one of following postulate is in accordance with the Rutherfords model?

183. X-ray are:

184. Ground state energy of the 4th orbit in a H-atom is

185. Neutron and proton are commonly known as

186. Which one of the following radiation possesses maximum penetrating power?

187. The bombardment of nitrogen with alpha particles will produce

188. Radioactive decay obeys which one of the following law?

189. When the same current passes for the same time through a thick and thin wire

190. One kilowatt-hour is the amount of energy delivered during

191. How much heat does a 40 W bulb generates in one hour?

192. The resistance of a superconductor is

193. Internal resistance is the resistance offered by

194. The resistance of a wire on increasing its temperature will

195. Look at this series: VI, 10, V, 11, __, 12, III, ... What number should fill the blank?

196. Look at this series: SCD, TEF, UGH, ____, WKL

197. Deepak said to Nitin, "That boy playing with the football is the younger of the two brothers of the daughter of my father's wife." How is the boy playing football related to Deepak?

198. Pointing to a woman, Abhijit said, "Her granddaughter is the only daughter of my brother." How is the woman related to Abhijit?

199. Choose the alternative which is closely resembles the mirror image of the given combination.

200. Tanya is older than Eric.
Cliff is older than Tanya.
Eric is older than Cliff.
If the first two statements are true, the third statement is