21. Geometrical isomerism is exhibited by ______. A. Butanol B. 2-Butenol C. 2-Butyne D. 2-Butene Answer Option : D 22. Which of the following will form 2 acetaldehyde molecules on ozonolysis? A. 1-butene B. 1-pentene C. 2-butene D. 2-pentene Answer Option : C 23. Identify the addition reaction which is not undergone by the alkenes? […]
31. Ziegler Natta catalyst is associated with _____. A. hydrogenation of alkenes B. hydroformylation of alkenes C. polymerisation of alkenes D. none of the above Answer Option : C 32. Which of the following is incorrect for a catalyst? A. Catalyst does not start a reaction B. Co-enzymes increase the activity of an enzyme C.
41. Good conductors have many loosely bound _____. A. atoms B. electrons C. protons D. molecules Answer Option : B 42. As temperature increases electrolytic conduction _____. A. increases B. decreases C. remains unaffected D. either increases or decreases Answer Option : A 43. With a rise in temperature, the resistance of semiconductors _____. A.
51. Formation of interstitial compounds makes the transition metals more ________. A. soft B. ductile C. malleable D. hard Answer Option : D 52. Transition elements exhibit variable valency because they release electrons from ________. A. ns orbitals B. np orbitals C. (n-1)d orbitals D. (n-1)d & ns orbitals Answer Option : C 53. In
61. The maximum number of electrons that can fit in all the orbitals with n = 2 and l = 1? A. 2 B. 4 C. 4 D. 8 Answer Option : C 62. Which of the following quantum numbers can distinguish between two electrons present in the same orbital? A. Azimuthal quantum number B.
71. Air pollution that occurs in sunlight is _______. A. fog B. acid rain C. reducing smog D. oxidizing smog Answer Option : D 72. How many unit cells are divided equally in a face-centred cubic lattice? A. 2 B. 4 C. 6 D. 8 Answer Option : C 73. Copper crystalline in FCC with
81. What is a necessary condition for a reaction to be spontaneous at all temperatures? A. 𐤃H < 𐤃G B. 𐤃H = 𐤃G = 0 C. 𐤃G and H should be positive D. 𐤃G and 𐤃H should be negative Answer Option : D 82. Chemical dissociation is _______. A. exothermic B. reversible C. endothermic D.
91. The buffer region is represented by _______. A. the concave curve after adding titrant B. the flat curve after the equivalence point C. the flat curve before the equivalence point D. the steep curve after the equivalence point Answer Option : C 92. Which of the following represents the equivalence point in the graph
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91. The characteristic of pronounced cephalisation is seen in A. Arthropoda B. Mollusca C. Annelida D. Echinoderms Answer Option : A 92. In arthropods, this is complete A. circulatory system B. respiratory structures C. digestive system D. reproductive structures Answer Option : C 93. The periplaneta belongs to which of this phyla A. Echinodermata B.
81. Which of the following cell organelle participates actively in animal apoptosis ? A. nucleus B. vacuoles C. mitochondria D. chloroplast Answer Option : C 82. Which of the following cell organelle participates actively in animal apoptosis ? A. nucleus B. vacuoles C. mitochondria D. chloroplast Answer Option : C 83. Which of the following
71. In plants, apomixis pertains to plant development A. from root cuttings B. from cuttings of stem C. without the gametes having to fuse D. fusion of gametes Answer Option : C 72. The difference between perisperm and endosperm is that perisperm A. has reserved food B. forms by fusion of the secondary nucleus with
61. Name the non-membrane bound organelle exclusively found only in animal cell A. Name the non-membrane bound organelle exclusively found only in animal cell B. Glyoxisome C. centriole D. Peroxisome Answer Option : C 62. If the centromere is located at the proximity of the end of a chromosome, it is known as A. Acrocentric
51. Amoebiasis causes ______. A. Fever B. Dysentry C. Severe cold D. Headache and cold Answer Option : B 52. The karyosome of Entamoeba histolytica is _______. A. even B. liver C. central D. progressive Answer Option : C 53. Differentiation between pathogenic and non-pathogenic strains can be done by _______. A. Phagocytic activity B.
41. Entamoeba differs from amoeba in not having ______. A. Nucleus B. Ectoplasm C. Pseudopodia D. Contractile vacuole Answer Option : D 42. In Amoeba, nutrition is ______. A. Saprobic B. Holophytic C. Parasitic D. Holozoic Answer Option : D 43. Which of the following is not the locomotory organ of protozoans? A. Cilia B.
31. The fluid sample required for performing the Amniocentesis test is ________. A. The amnion B. The placenta C. The liquid surrounding the immediate fetus D. All of the above Answer Option : C 32. Amniocentesis is a prenatal diagnostic test, which can also determine whether an unborn child will have __________ or not. A.
21. Which of the following amino acids has to be supplemented in the diet? A. phenylalanine B. cysteine C. glutamine D. asparagine Answer Option : A 22. Which of the following amino acids is not necessary to be taken in the diet? A. histidine B. threonine C. serine D. lysine Answer Option : C 23.
11. The “Lock and key” theory of enzyme action was put forward by A. Koshland B. Fischer C. Kuhne D. Arrhenius Answer Option : B 12. Allosteric enzymes possess A. Three types of allosteric sites B. Active site and three types of allosteric sites C. Active site and two types of allosteric sites D. Active
01. Abscisic Acid contains _______. A. one asymmetric and two symmetric carbon atoms B. one symmetric and two asymmetric carbon atoms C. one asymmetric carbon atom D. one symmetric carbon atom Answer Option : C 02. Dormin is a _______. A. abscisic acid B. growth promoter C. auxin D. none of these Answer Option :
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01. The metal detectors installed at airports and other places for security purpose are based on the principle of ________. A. potential difference B. electromagnetic difference C. electromagnetic induction D. potential energy Answer Option : C 02. Name two main parts of an AC generator. A. stator B. rotor C. None of these D. Both
11. If the magnitude of the resultant force of two forces is lesser than the magnitude of the larger force, then A. The two forces are perpendicular to each other B. They two forces in opposite direction C. The forces are different in magnitude and direction D. The forces posses small magnitude Answer Option :
21. If a current I given by I0sin(ωt−π2) flows across an AC circuit with potential E=E0sinωt, then what is the power consumption in the circuit? A. P= E0Io/2 B. P= √2E0I0 C. P= E0I0/√2 D. P=0 Answer Option : D 22. What is the frequency of a 5μF capacitor that has a reactance of 1000
31. Charged particle ‘q’ moving through a magnetic field with velocity V will have zero magnetic force when the angle is A. 0 B. 90 C. 180 D. Both a and b Answer Option : D 32. If a coil carrying current is placed in uniform magnetic field, then A. emf is produced B. Torque
