MCQs on Acids and Bases Bleaching powders chemical name is calcium hypo oxychloride calcium oxychloride calcium chloride calcium chloro oxide Answer: (b) The ratio of the water molecule in plaster of paris and gypsum is 3:1 1:3 1:4 4:3 Answer: (c) Baking powder is sodium carbonate + sodium tartaric sodium …
MCQs on First Law of Thermodynamics and Hess Law The variations in enthalpy that can not be detected per calorimeter can be detected with the aid of Newton’s law Hess’s law Krebs law Ohm’s law Answer: (b) The energy required to sever a given covalent bond is named bond energy …
MCQs on Heat of Reaction The energy released in the form of nuclear radiation in addition to heat and light during nuclear reactions is known as chemical energy nuclear energy heat energy electrical energy Answer: (b) Fireworks release energy in the form of heat sound light all of the above …
MCQs on Conductor and Conductance The unit of conductance cannot be expressed in mho (ohm)-1 siemens ohm/m Answer: (d) The SI unit of specific resistance is ohm m ohm/m ohm/m2 (ohm)-1 Answer: (a) The reciprocal of resistivity of a conductor is conductance capacitance conductivity none of these Answer: (c) In …
MCQs on Alkyne Ethyne and Ethane can be separated from a mixture by passing it through (a) Pyrogallol (b) Charcoal powder (c) Concentrated H2SO4 (d) Ammonical Cu2Cl2 1-butyne and 2-butyne can be identified by using which of the following reagents? (a) O2 (b) Br2 (c) NaNH2 (d) HCl Which of …
MCQs on Valence Bond Theory In which year was the Valence bond theory introduced? (a) 1927 (b) 1920 (c) 1930 (d) 1935 The oxygen molecule is paramagnetic. It can be explained by (a) Resonance (b) Hybridisation (c) Valence bond theory (d) Molecular orbital theory Bond angle of 120° is found …
MCQs on Chlorofluorocarbons 1. Which of the following statements is true about chlorofluorocarbons? Chlorofluorocarbons are used as refrigerants Chlorofluorocarbons are used as fuel for air crafts Chlorofluorocarbons are used as repairers of the ozone layer Chlorofluorocarbons are used as repairers of the troposphere Sol. (a) Chlorofluorocarbons are used as refrigerants. …
MCQs on Molecular Biology 1. The function of β subunit of polymerase is a. Template binding b. Catalytic binding c. Promoter binding d. Cation binding 2. Which of the σ factors is heat stable? a. σ 54 b. σ 70 c. σ 28 d. σ 32 3. The mRNA codon …
MCQs on Photosynthesis 1. Photosynthesis occurs in a. Chloroplast b. Golgi body c. Endoplasmic reticulum d. Nucleus 2. The optimum temperature for photosynthesis is a. 25-35℃ b. 10-15℃ c. 35-40℃ d. 20-25℃ 3. Photorespiration occurs in a. Four cell organelles b. Two cell organelles c. One cell organelle d. Three …
MCQs on Human Reproduction 1. _______ is a lytic enzyme released by the sperm. a. Hyaluronidase b. Trypsin c. Helicase d. None of the above 2. How many autosomes does a human primary spermatocyte have? a. 34 b. 44 c. 54 d. 33 3. Where does the ovum receive the …
MCQs on Animal Physiology 1. Where are histamine-secreting cells found? a. Nervous tissue b. Connective tissue c. Areolar tissue d. None of the above 2. What is collagen? a. Fat b. Protein c. Carbohydrate d. None of the above 3. Where are Haversian canals found? a. Humerus b. Medula c. …
MCQs on Evolution 1. The force that initiates evolution is ______ a. Variation b. Mutation c. Extinction d. Adaptation 2. ___________ is a vestigial organ a. Intestinal villi b. Papillae c. Vermiform appendix d. None of the above 3. The earliest geological time period among the following is _______ a. …
MCQs on Animal Morphology 1. Tendons and ligaments are made of a. Special connective tissue b. Epithelial tissues c. Dense regular connective tissue d. Loose conductive tissue 2. Where are intercalated discs found? a. Skeletal muscles b. Tendons c. Spinal cord d. Cardiac muscles 3. Certain mummies are well preserved …
MCQs on Reproductive Health 1. Which Artificial Reproductive Technique can help a lady conceive a child if both her fallopian tubes are blocked? a. SUZI b. IVF c. ZIFT d. GIFT 2. Which of the following is not a copper-releasing IUD? a. LNG 20 b. CuT c. Lippes Loop d. …
MCQs on Enhancement of Food Production 1. ____________ is a breed of cattle. a. Jersey b. Merino c. Herdwick d. None of the above 2. Gobar gas plants use __________ bacteria a. Methanogenic b. Cyanogenic c. Oncogenic d. Pyogenic bacteria 3. Green Revolution was led by __________ a. Dennis Rodman …
MCQs on Microbes in Human Welfare 1. Which of these processes does not give off CO2? a. Lactate fermentation b. Aerobic respiration c. Alcoholic fermentation d. None of the above. 2. High biological oxygen demand in a water body means ________ a. Water is not polluted b. Water is polluted …
MCQs on Human Health and Disease 1. Immunosuppressants such as _________ prevent transplanted organs from being rejected in recipients. 1. Thrombin 2. Cyclosporine 3. Aspirin 4. None of the above 2. Both B & T lymphocytes are produced in the bone marrow; however, only the T lymphocytes travel to the …
MCQs on Biotechnology 1. Restriction enzymes were discovered by a. Smith and Nathans b. Alexander Fleming c. Berg d. None 2. Bacteria protect themselves from viruses by fragmenting viral DNA with a. Ligase b. Endonuclease c. Exonuclease d. Gyrase 3. Klenow fragment is derived from a. DNA Ligase b. DNA …
MCQs on Animal Kingdom 1. Which class has the largest number of animals? a. Fishes b. Reptiles c. Insects d. Mammals 2. Identify the characteristic of acoelomates a. Absence of mesoderm b. Absence of brain c. Coelom that is incompletely lined with a mesoderm d. Solid body without a cavity …
MCQs on Biomolecules 1. Which biomolecule is distributed more widely in a cell? a. Chloroplast b. RNA c. DNA d. Spaherosomes 2. Which is a reducing sugar? a. Galactose b. Gluconic acid c. Sucrose d. β-methyl galactosidase 3. Most abundant RNA in the cell a. rRNA b. mRNA c. tRNA …
MCQs on Biodiversity and Conservation 1. How many biogeographic does India have? 1. 5 2. 6 3. 8 4. 10 2. Lime is generally added to _____ soil. 1. Salty 2. Dry 3. Alkaline 4. Acidic 3. _______ has the maximum genetic diversity in India 1. Potato 2. Tea 3. …