EASY
DRDO MTS Tier - II
IMPORTANT
Earn 100

Which of the following compounds are responsible for "acid rain”

1. Nitrogen dioxide        2. Silicon dioxide         

3.Sulphur dioxide            4. Carbon monoxide

50% studentsanswered this correctly

Important Questions on Chemistry

EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 281
The substance coated on plastic tape-recorder tapes is
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 282
In addition to the idea that matter consists of molecules, the kinetic theory of matter assumes that these molecules
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 283

An atom has 17 electrons, 17 protons, 18 neutrons.Therefore which of the following is/are true ?

I. Its atomic number is 17

II. Its mass number is 35.

EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 284
All acids contain:
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 285
The difference between explosion and combustion is that
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 286

Match the following

A. Pure water from the sea 1. Sublimation
B. Gasoline from crude oil 2. Evaporation
C. Table salt from seawater 3. Distillations
D. Purified camphor 4. Fractional distillations
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 287

Consider the following statements

Ammonia is:
1. Readily soluble in water.
2. Used as a refrigerant.
3. Used for preparation of polypropylene.
4. Used as an additive in cooking gas.

Which of these statements are correct?

MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 290

Match the following:

Drugs Action
A. Antipyretics 1. Cure Allergies
B. Analgesics 2. Calm the nerves
C. Tranquillizers 3. Relieve pain
D. Antihistamines 4. Lower body temperature