Q.1:- Aspirin is common name of ?
- Salicylic Acid
- Salicylate
- Methyl Salicylate
- Acetyl Salicylic Acid
Q.2:- The substance that is added to make natural rubber strong and more bouncy is ?
- Polythene
- Sponge
- Sulphur
- Chlorine
Q.3:- Which of the following is used to iodise common salt ?
- Potassium Iodide
- Iodine
- Potassium Iodate
- Sodium Iodide
Q.4:- The enzyme that converts glucose to Ethyl Alcohol is ?
- Invertase
- Maltase
- Zymase
- Diastase
Q.5:- What is the most commonly used substance in fluorescent tubes ?
- Sodium Oxide and Argon
- Sodium Vapour and Neon
- Mercury Vapour and Argon
- Mercury Oxide and Neon
Q.6:- Milk is colloidal system in which ?
- Water is dispersed in fat
- Fat is dispersed in water
- Fat and water are dispersed in each other
- Fat is dissolved
Q.7:- When there are two electrons in the same orbital, they have ?
- Same spin
- Opposite spin
- Same or opposite spin
- No spin
Q.8:- Which among the following is a Carbohydrate ?
- Nylon
- Cane-Sugar
- Turpentine
- Hydrogen Peroxide
Q.9:- Bronze is an alloy of ?
- Copper and Zinc
- Tin and Zinc
- Copper and Tin
- Iron and Zinc
Q.10:- The acid used in lead storage cells is ?
- Phosphoric Acid
- Hydrochloride Acid
- Nitric Acid
- Sulphuric Acid
Q.11:- The effect of response produced by two or more chemicals are less than the sum of the effects or response that the chemical would produce individually is known as ?
- Antagonism
- Independent
- Additive
- Synergism
Q.12:- Which metal is the heaviest in periodic table among the following ?
- Os
- Pt
- Pb
- W
Q.13:- Which one of the following does not form Oxyacid ?
- Sulphur
- Chlorine
- Nitrogen
- Fluorine
Q.14:- The depletion of Ozone Layer is mainly due to ?
- Volcanic Eruptions
- Aviation Fuels
- Radioactive Rays
- Chlorofluorocarbons
Q.15:- Browning of paper in old books is caused by ?
- Frequent use
- Lack of aeration
- Collection of dust
- Oxidation of cellulose
Q.16:- The inert gas which is substituted for Nitrogen in the air used by deep sea divers for breathing is ?
- Neon
- Krypton
- Argon
- Helium
Q.17:- Antacids are found in drugs that give relief to ?
- Eye sight
- Stomach ache
- Acne
- Headache
Q.18:- The degree of dissociation of an electrolyte depends on ?
- Dilution
- Impurities
- Atmospheric Pressure
- Method of Dissolution
Q.19:- Iron is prevented from rusting by coating with Zinc. This process is called as ?
- Galvanisation
- Corrosion
- Sublimation
- Reduction
Q.20:- Electric fuse is an Alloy of ?
- Tin and Lead
- Zinc and Lead
- Copper and Iron
- Carbon and Tin
Q.21:- Which one out of the following helps in burning ?
- Oxygen
- Carbon Monoxide
- Nitrogen
- Carbon Dioxide
Q.22:- The hottest part of the gas flame is known as ?
- Blue Zone
- Non-Luminous Zone
- Luminous Zone
- Dark Zone
Q.23:- Urea is a ?
- Sodium Fertilizer
- Phosphatic Fertilizer
- Nitrogenous Fertilizer
- Potassium Fertilizer
Q.24:- Tear gas used by the police to disperse the mob contains ?
- Carbon Dioxide
- Chlorine
- Ammonia
- Hydrogen Sulphide
Q.25:- The chemical name of “Laughing Gas” is ?
- Nitric Oxide
- Nitrogen Dioxide
- Nitrogen Pentoxide
- Nitrous Oxide
