EASY
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IMPORTANT
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The essential element in all organic compounds is

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Important Questions on Chemistry

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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 257

Match the columns

            Type of Mixture                         Method of Separation

A. Insoluble solid and liquid                  1. Distillation

B. Two immiscible liquids                      2. .Evaporation

C. Soluble solid and liquid                     3. Use of separating funnel

D. Completely miscible liquids               4. Decantation
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 258

Match the following :                                        

Fuel Gases                               Major Constituents

   A. CNG                                  1. Carbon monoxide, Hydrogen

  B. Coal Gas                            2. Butane, Propane

  C. LPG                                   3. Methane, Ethane

  D. Water Gas                         4. Hydrogen, Methane, Carbon monoxide
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 259
Salts of which of the following elements provide colours to fireworks
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 263
During the fermentation of sugar, the enzyme which converts glucose into ethyl alcohol is
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IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 266

Match the following:

Drugs/Chemicals Their uses
A. Atropine 1. Local anaesthesia
B. Ether 2. Heart trouble
C. Nitroglycerine 3. Dilation of pupils
D. Pyrethrin 4. Mosquito control
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 267

Match the following:

A. Silver Bromide 1. Etching of glass
B. Hydrogen peroxide 2. Purification of air
C. Ozone 3. Bleaching agent
D. Hydrofluoric acid 4. Photography
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 268

Match the following:

A. Chile Saltpetre 1. Mercury
B. Fluorspar 2. Zinc
C. Calamine 3. Sodium
D. Cinnabar 4.Calcium
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 270

Match the following:

A. Hydrogen 1. The most abundant element on earth
B. Oxygen 2. The most abundant element in the universe
C. Nitrogen 3. Constituents of plant and animal proteins
D. Chlorine 4. Used as a bleaching agent