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DRDO MTS Tier - II
IMPORTANT
Earn 100

The chemical used as a 'fixer' in photography 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 233

Match the following:

List-I (Process) List-II (Changes)
A. Evaporation 1. Liquid into gas
B. Sublimation 2. Gas into liquid
C. Freezing 3. Solid into gas
D. Melting 4. Solid into liquid
  5. Liquid into solid

Codes:
A B C D

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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 234

Which of the following causes the rusting of iron?

1. Oxidation

2. Reduction

3. Chemical reaction with oxygen

4. Chemical reaction with carbon dioxide

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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 236
Match the following:
Process Materials obtained
A. Hydrogenation 1. Vanaspati
B. Evaporation 2. Ethyl alcohol
C. Distillation 3. Common salt
D. Polymerisation 4. Nylon
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 237
The fresh urine has no smell while after some time it develops a strong odour because
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 238
Match the following:
A. Exclusion principle 1. Balmer
B. Uncertainty principle 2.Heisenberg
C. Atomic spectrum of hydrogen atoms in visible regions 3.Schrodinger
D. Wave mechanic 4.Pauli
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 239

Match the following:

A. Zeolite 1.Purgative
B. Sodium Thiosulphate 2. Safety Matches
C. Magnesium Sulphate 3.Dry Cells
D. Graphite 4.Purification of Water
  5.Photography
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 240
Who among the following does not have a chemical element named after him?
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 242
Match the following:
Nature of the solution pH
(A) Weakly acidic 1 1.5
(B) Strongly acidic 2 12.5
(C) Weakly basic 3 6.5
(D) Strongly basic 4 7.5