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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
On dissolving moderate amount of sodium metal in liquid NH3 at low temperature, which of the following does no occur ? (a) Na+ ions are formed in the solution (b) Blue coloured solution is obtained (c) Liquid NH3 becomes good conductor of electricity (d) Liquid NH3 remains diamagnetic |
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Answer» Correct Option (c) Liquid NH3 becomes good conductor of electricity Explanation : On dissolving moderate amount of sodium metal in liquid NH3 at low temperature,that liquid NH3 becomes paramagnetic due to presence of free electrons. |
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| 52. |
Match the items given in Column I with those in Column II and select the correct option given below :-Column IColumn IIa. Proliferative Phasei. Breakdown of endometrial liningb. Secretory Phaseii. Follicular Phasec. Menstruationiii. Luteal Phaseabc1iiiiii2iiiiii3iiiiii4iiiiii |
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Answer» The correct option is (3) Explanation: During proliferative phase, the follicles start growing in size under the influence of Follicle-stimulating Hormone (FSH). Hence, this phase is also called follicular Phase. During the secretory phase, corpus luteum secretes progesterone that helps to thicken the endometrial lining. Due to the persistence of corpus luteum, this phase is also called luteal phase. Menstruation or bleeding occurs due to the breakdown of endometrial lining in the absence of pregnancy. During this phase, corpus luteum regresses and progesterone level decreases. |
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| 53. |
In the modern era, due to excess stress and faulty life styles, mental problems are on increasing trend. Arrange the given component in correct sequence of cycle.Components are1. Avoid treatment 2. Silence and hiding3. Stigma 4. Symptoms of mental illness5. DiscriminationABCDE(a)31245(b)54312(c)43521(d)14523 |
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Answer» Correct Option (c) |
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| 54. |
Assertion (A) The leaves of cauliflower become flaccid and gray in molybdenum deficiency. Reason (R) Cauliflower plant is affected by whiptail disease in molybdenum deficiency. (a) Both A and R are true and R is correct explanation of A (b) Both A and R are true and R is not correct explanation of A (c) A is true but R is false (d) A is false but R is true |
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Answer» Correct Option (a) Both A and R are true and R is correct explanation of A |
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| 55. |
A 12 year old by, whose body mass indeed BM1 is 18.5, starts complaining of stomach-ache on every monday morning. His doctor has not found any organic cause despite of all investigations. What may be the cause of this abdominal pain : (a) Psychogenic (b) Pseudo-obstruction (c) Haemorrhoids (d) Hirschprung's disease |
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Answer» Correct Option (c) Haemorrhoids |
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| 56. |
A cylindrical block floats verticallyin a liquid of density (rho1 )kept in a container such that the fraction of volume of the cylinder inside the liquid is x1 . Then some amount of another immiscible liquid of density( rho2)((rho1>rho2) is added to the liquid in the container so that the cylinder now floats just fully immersed in the liquid with x2 fraction of volume of the cylinder inside the liquid of density rho1. The ratio rho1/ rho2.A) 1-x2/ x1-x2B) 1-x1/x1+x2C) x1-x2/x1 + x2 |
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Answer» Hints |
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| 57. |
If the last electron (i.e. the differentiating electron) occupies 5f - orbital, the element is said to belong 5f - series. In this series, ions having 5f0, 5f1 and 5f14 are colourless. The colour of U3+ is red which is due to(a) d - d transition(b) f - f transition(c) crystal defect(d) L \(\rightarrow\) M charge transfer |
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Answer» Answer is : (b) f - f transition Colour of U3+ is due to transition of electron from lower electronic energy level of f-orbital to higher electronic energy level of f - orbital. This type of transition is known as f - f transition. |
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| 58. |
Minimum amount of work done required to compress 5.00 moles of an ideal gas isothermally from 200 L to 40 L is(a) + 20.1 kJ(b) - 20.1 kJ(c) - 20.1 J(d) + 20.1 J |
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Answer» Answer is : (a) + 20.1 kJ Work done in isothermal compression can be calculated as follows: \(W=-nRT\,In\frac{V_2}{V_1}\) = - 5 x 8.314 x 300 x 2.303 \(log\frac{40}{200}\) = - 1500 x 8.314 x 2.303 x (- log 5) = + 20.1 kJ |
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| 59. |
Which of the following are the causes of insulin resistance : I. Polycystic ovary disease II. Hemochromatosis III. Lipodystrophy IV. Mutations of melanocortin receptors (a) I and IV (b) I, II, III and IV (c) II and III (d) II and IV |
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Answer» Correct Option (b) I, II, III and IV |
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| 60. |
Which one of the statement given below is not correct (a) Insectivorous plants are autotrophic and heterotrophic as they capture insects to overcome their N2 deficiency (b) Sulphur is main constituent of chlorophyll (c) The most important diseases due to copper deficiency are exanthema and reclamation (d) Nif gene is present in Rhizobium |
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Answer» Correct Option (b) Sulphur is main constituent of chlorophyll |
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| 61. |
Label the given diagram with options given below(a) Epicotyl Hypocotyl Colydeons(b) Hypocotyl Epicotyl Cotyledons(c) Hypocotyl Cotyledons Epicotyl(d) Epicotyl Cotyledons Hypocotyl |
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Answer» Correct Option (a) Epicotyl Hypocotyl Colydeons |
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| 62. |
Cichlid fish became extinct due to a alien species in the lake Victoria. Find out the name of that alien species from the following options : (a) Nile perch (b) African catfish (c) Murrells (d) Water hyacinth |
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Answer» Correct Option (a) Nile perch |
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| 63. |
In reference to the mRNA, select the incorrect option (a) mRNA is linear (b) it carries coded inforaton (c) It does not require any processing (d) Nitrogen bases are unmodified |
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Answer» Correct Option (c) It does not require any processing |
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| 64. |
Idenfity the marking of below ecological pyramid from following options. If 1- Herbivores; 2-Secondary predator; 3-Decay detrivoves; 4-Primary predators; 5- Autrotrophs :ABCDE(a)21345(b)41352(c)35214(d)53214 |
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Answer» Correct Option (c) |
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| 65. |
As per the fluid mosaic theory/model of cell membrane, lipid is also present in the membrane select the correct organelles in which it synthesised (a) smooth endoplasmic reticulum (b) Golgi apparatus (c) mitochondria (d) lysosome |
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Answer» Correct Option (a) smooth endoplasmic reticulum |
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| 66. |
Which of the following statements is not correct for interferons : (a) They are mainly glycopretein in nature (b) They are produced by plasma B–cells only (c) They form the body's second line of defence (d) They provide a temporary protection against microbes |
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Answer» Correct Option (b) They are produced by plasma B–cells only |
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| 67. |
Which are the species in which sulphur undergoes sp3 hybridisation ? I. SF4 II. SCl2 III. SO42– IV. H2S(a) I & III (b) I, II & IV (c) II, III & IV (d) III & IV |
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Answer» Correct option (c) II, III & IV Explanation: I. SF4 = 4 bp + 1 lp ⇒ sp3d hybridisaton II. SCl2 = 2 bp + 2bp ⇒ sp3 hybridisation III. SO42– = 4 bp ⇒ sp3 hybridisation IV. H2S = 2 bp + 2lp ⇒ sp3 hybridisation Thus, S atom in SCl2, SO42–, H2S undergoes sp3 hybridisation. Option (c) is correct |
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| 68. |
Which of the following EEG waves of brain occur mainly in children and in adults during stress ? (a) Alpha waves (b) Beta waves (c) Delta waves (d) Theta waves |
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Answer» Correct Option (d) Theta waves |
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| 69. |
The enzyme that catalyses the conversion of plasminogen to plasmin and is used in acute coronary arterial thrombosis is :(a) streptokinase (b) phosphotransferase (c) β-lactamase (d) penicillinase |
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Answer» Answer : (a) streptokinase Streptokinase is an enzyme produced by streptococci that catalyse the conversion of plasminogen to plasmin. It is administered intravenously as a thrombolytic agent in the treatment of acute coronary arterial thrombosis. |
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| 70. |
GMFs have proven their importance as : (a) they cuase less damage to environment (b) they allow the increase of crop quantity (c) they improve profitability (d) they improve convience of customers |
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Answer» Correct Option (c) they improve profitability |
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| 71. |
Why the tropical deciduous trees shed their leaves (a) To protect itself from heat and water (b) To enhance rate of respiration and rate of absorption (c) To reduce the rate of transpiration (d) To save energy |
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Answer» Correct Option (c) To reduce the rate of transpiration |
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| 72. |
Hormones secreted by the placenta to maintain pregnancy are(1) hCG, hPL, progestogens, prolactin(2) hCG, hPL, estrogens, relaxin, oxytocin(3) hCG, hPL, progestogens, estrogens(4) hCG, progestogens, estrogens, glucocorticoids |
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Answer» The correct option is(3) hCG, hPL, progestogens, estrogens Explanation: The hormones secreted by the placenta to maintain Pregnancy are hCG, hPL, progestogens and estrogens. Placenta is the intimate connection between the foetus and uterine wall of the mother to exchange the materials. It has endocrine function and secretes the following hormones (i) Human Chorionic Gonadotropins (hCG) It stimulates and maintains the corpus luteum to secrete progesterone until the end of Pregnancy. (ii) Human Placental Lactogen (hPL) It is also known as Human Chorionic Somatomam- motropin (HCS), it stimulates the growth of mammary glands during Pregnancy. (iii) Progesterone and estrogen support foetal growth, maintain pregnancy, inhibit uterine contractions, etc. On the other hand, the sources of other hormones are as follows
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| 73. |
MALT constitutes about ________ percent of the lymphoid tissue in human body.(1) 20%(2) 70%(3) 10%(4) 50% |
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Answer» The correct answer is (4) MALT or Mucosa Associated Lymphoid Tissue constitutes about 50 percent of the lymphoid tissue in human body. It is scattered along mucosal lining in the human body. |
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| 74. |
An electromagnetic wave is propagating in a medium with a velocity v = − a \(\hat j\). Magnetic field oscillates in the direction of + X - axis. Then, the direction of oscillating electric field of electromagnetic wave will be(a) along − x - direction(b) along + y - direction(c) along − z - direction(d) along + z - direction |
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Answer» Answer is : (c) along − z - direction Given, v = - a \(\hat j\) ∴ E x B = v, which satisfies, (- \(\hat k\) E x B \(\hat i\)) = a \(\hat j\) |
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| 75. |
Presence of plants arranged into well defined vertical layers depending on their height can be seen best in:(1) Tropical Rain Forest(2) Grassland(3) Temperate Forest(4) Tropical Savannah |
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Answer» The correct answer is (1) The tropical rain forest have five vertical strata on the basis of plants height i.e., ground vegetation, shrubs, short canopy trees, tall canopy trees and tall emergent trees. |
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| 76. |
Which of the following statements is correct ?(1) The descending limb of loop of Henle is impermeable to water.(2) The ascending limb of loop of Henle is permeable to water.(3) The descending limb of loop of Henle is permeable to electrolytes.(4) The ascending limb of loop of Henle is impermeable to water. |
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Answer» The correct answer is (4) Descending limb of loop of Henle is permeable to water but impermeable to electrolytes whereas ascending limb is impermeable to water but permeable to electrolytes. |
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| 77. |
The longitudinal waves starting from a ship return from the bottom of the sea to the ship after 2.60 s. If the bulk modulus of water be 220 kg mm−2 and the density is 1.1 × 103 kgm−3,the depth of sea is (take, g = 9 8.N kg−1)(a) 1820 m (b) 1850 m (c) 1400 m (d) 1420 m |
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Answer» Answer : (a) 1820 m Given, K = 220 kg mm-2 = 220\(\times\)106 kgm-2 = 220 \(\times\)9.8 \(\times\)106Nm-2 And, ρ = 1.1 \(\times\) 103 kgm-3 Velocity, v = \(\sqrt{\frac{K}{ρ}}\) = \(\sqrt{\frac{220\times 9.8\times 10^6}{1.1\times 10^3}}\) = 1400 ms-1 Depth of sea = \(\frac{vt}{2}\) = \(\frac{1400\times 2.60}{2}\) = 1820 m. |
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| 78. |
In dicot stem, the vascular bundles are :–[a] amphicribal [d] scattered[c] arranged in a ring [d] none of these |
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Answer» Correct option [c] arranged in a ring |
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| 79. |
Acetabulum is located in :–(a) collar bone (b) hip bone(c) shoulder bone (d) thigh bone |
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Answer» Correct option (b) hip bone |
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| 80. |
Which of the following plant cells shows totipotency :–[a] Meristem cells [b] Sieve tubes[c] Collenchyma cells [d] Xylem vessels |
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Answer» Correct option [a] Meristem cells |
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| 81. |
Cowper's glands are found in :–[a] male mammals [b] female mammals[c] male amphibians [d] female amphibians |
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Answer» Correct option [a] male mammals |
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| 82. |
Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in:(1) C4 plants(2) C2 plants(3) C3 and C4 plants(4) C3 plants |
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Answer» The correct answer is (1) In the mesophyll cell cytoplasm of C4 plants like sugarcane, maize, sorghum etc. PEP is3C compound which serves as primary CO2 acceptor |
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| 83. |
Which statement is wrong for Krebs' cycle ?(1) There is one point in the cycle where FAD+ is reduced to FADH2(2) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised(3) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid.(4) There are three points in the cycle where NAD+ is reduced to NADH + H+ |
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Answer» The correct answer is (3) Krebs cycle begins with condensation of acetyl CoA (2C) with oxaloacetic acid (4C) to form citric acid (6C). |
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| 84. |
Mesangial cells are specialised smooth muscles cells that function to regulate blood flow in the blood vessels. They are found in which organ of the body (a) Testis (b) Brain (c) Kidney (d) Ovary |
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Answer» Correct Option (c) Kidney |
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| 85. |
Which of the following disease(s) may lead to Iron Deficiency Anaemia (IDA). i. Peptic ulcer ii. Inflammatory Bowel Disease (IBD) iii. Hypochlorhydria iv. Pregnancy (a) i and iii (b) All may leads to IDA (c) Only iv (d) i, ii and iv |
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Answer» Correct Option (b) All may leads to IDA |
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| 86. |
When osmotic potential is either zero of negative and pressure potential is positive, then the water potential will be (a) always negative (b) always positive (c) some times negative and some times positive (d) do not show any specificity |
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Answer» Correct Option (a) always negative |
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| 87. |
Broca's area in human brain controls :– [a] movement of tongue [b] breathing and hiccup [c] movement of vocal cords [d] both [a] and [c] |
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Answer» Correct option [d] both [a] and [c] |
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| 88. |
In the question given below, identify what the letters ‘x’ and ‘y’ stand for.(a) Propepsin, Dipeptides(b) Pepsinogen, Peptones(c) Pepsinogen, Amino acids(d) Propepsin, Amino acids |
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Answer» Answer is : (b) Pepsinogen, Peptones Proenzyme pepsinogen on exposure to HCl gets converted to pepsin. Pepsin converts proteins into proteoses and peptones. |
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| 89. |
Which among the following statements is incorrect regarding α -1 Antitrypsin (AAT)?(a) It is a human protein made in the liver and found in the blood(b) It is an inhibitor of protease enzymes like trypsin and elastase(c) Inhibition of protease enzymes leads to lung disease emphysema(d) AAT can be extracted from blood donations in large amounts |
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Answer» Answer is : (d) AAT can be extracted from blood donations in large amounts The statement (d) is incorrect regarding α -1 Antitrypsin (AAT). The condition of emphysema can be treated by inhaling an aerosolspray containing AAT, so that it reaches the alveoli and inhibits the elastase activity there. AAT for this treatment can be extracted from blood donations, but only in very small amounts. |
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| 90. |
Name the leucocytes which is the largest in all types of leucocytes and constitute 2-10% of blood leucocytes.(a) Neutrophils(b) N - K cells(c) Monocytes(d) Both (b) and (c) |
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Answer» Answer is : (c) Monocytes Monocytes are the largest of all types of leucocytes and amoeboid in shape. Monocytes constitute 2-10% of blood leucocytes. They generally change into macrophages after entering tissue spaces. Neutrophils constitute about 65% of blood leucocytes. NK cells are natural killer cells. |
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| 91. |
If the location of food source is towards the sun, a honeybee will wag its tail in which pattern?(a) Vertically downward(b) Right angle towards left(c) Vertically upward(d) Right angle towards right |
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Answer» Answer is : (c) Vertically upward Tail wagging dance is a method of communication used by honeybees to convey the location of food. By performing this dance, honeybee shares information about the direction and distance of food. If it moves vertically upward, the direction of food source is directly towards the sun. |
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| 92. |
Ciliates differ from all other protozoans in(1) using flagella for locomotion(2) having a contractile vacuole for removing excess water(3) using pseudopodia for capturing prey(4) having two types of nuclei |
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Answer» The correct option is(4) having two types of nuclei Explanation: Ciliates differ from all other protozoans in having two types of nuclei. These two nuclei are usually of different size, i.e. one is meganucleus and the other is micronucleus. The former controls metabolism whereas the latter is concerned with reproductions, e.g. paramecium. In other protozoans, like Amoeba, single nucleus is present which is involved in metabolism and reproduction. Other options are incorrect because Ciliates use filter feeding mechanism for obtaining food. Like other protozoans, they also possess contractile vacuoles. Ciliates use cilia for locomotion. |
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| 93. |
A and B are ideal gases, the molecular weights of A and B are in ratio of 1 : 4. The pressure of a gas mixture containing equal weights of A and B is p atm. What is the partial pressure (in atm) of B in the mixture?(a) \(\frac{p}{5}\)(b) \(\frac{p}{2}\)(c) \(\frac{p}{2.5}\)(d) \(\frac{3p}{4}\) |
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Answer» Answer is : (a) \(\frac{p}{5}\) MA = a and MB = 4a WA = wB = m(say) \(\chi_B=\frac{m/4a}{m/4a+m/a}\) \(=\frac{1}{5}=\frac{p}{5}\) |
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| 94. |
Boron on reaction with CO2 and H2O produces boron hydride as a major constituent the other byproduct produced in these reactions are :(a) H2O and C (b) H2 and CO2(c) H2 and C (d) H2O and CO2 |
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Answer» Correct Option (c) H2 and C Explanation : Boron is a very powerful reducing agent produces H2 gas and carbon by means of replacement reaction. |
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| 95. |
Werner's theory was the first successful theory, which explained the properties of complexes. According to Werner's theory the primary and secondary valence of [Co(Cl3(NH3)3]Cl3 is :(a) 3 & 3 respectively (b) 6 & 6 respectively(c) 3 & 6 respectively (d) 6 & 3 respectively |
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Answer» Correct Option (c) 3 & 6 respectively Explanation : According to Werner's theory primary valence means oxidation state and secondary valance means coordination number. Let oxidation state of Co in [CoCl3(NH3)3Cl3 is x x – 3 + 0 = + 3 x = 0 Primary valence = 3 Secondary valence = coordination numbers = 6 |
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| 96. |
Potassium super oxide is the inorganic compound with the formula KO2. It is a yellow solid that decomposes in moist air. It is a rare example of a stable salt of the super oxide ion. Which of the following statement is incorrect regarding potassium super oxide : (a) Oxidation state of oxygen in KO2 is –1/2 (b) Oxidation state of potassium is +1 (c) It is used in preparation of breathing mask (d) It is a reducing agent |
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Answer» Correct Option (d) It is a reducing agent Explanation: In real KO2 is a very good oxidising agent KO2 is even more good oxidising angenta than K2O2. |
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| 97. |
Potassium superoxide is the inorganic compound with the formula, KO2. It is a yellow solid that decomposes in moist air. It is a rare example of a stable salt of the superoxide ion. Which of the following statement is incorrect regarding potassium superoxide?(a) Oxidation state of oxygen in KO2 is - 1/2(b) Oxidation state of potassium is +1(c) It is used in preparation of breathing mask(d) It is a reducing agent |
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Answer» Answer is : (d) It is a reducing agent KO2 is a very good oxidising agent KO2. It is even more good oxidising agent than K2O2. |
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| 98. |
Ozone hole is a term which refers to(a) hole in ozone layer(b) reduction in thickness of ozone layer in stratosphere(c) reduction in thickness of ozone in troposphere(d) increase concentration of ozone |
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Answer» Answer is : (c) reduction in thickness of ozone in troposphere Ozone is found in stratosphere, which is depleted by CFC and hence the thickness of ozone is reduces. |
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| 99. |
Correct sequence of stage in evolution of Modern manI. AustralopithecusII. HomoerectusIII. Neanderthal manIV. Cro-magnon manV. Modern man(a) V, III, I, IV, II (b) I, II, III, IV, V(c) III, II, I, V, IV (d) II, IV, V, I, III |
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Answer» Correct Option (b) I, II, III, IV, V |
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| 100. |
What is true about the first living organisms ? (a) They originated in an oxidising atmosphere (b) They were aerobic (c) Made their own food (d) Obtained eneryg by fermentation of organic molecules |
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Answer» Correct Option (d) Obtained eneryg by fermentation of organic molecules |
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