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Earn 100

The cleaning action of soap and detergent in water is due to the formation of_____.

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Important Questions on Chemistry

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DRDO MTS Tier - II
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General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 424
Which one of the following statements is correct?
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General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 425
Which one of the following statements is not correct?
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DRDO MTS Tier - II
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General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 427
The absolute zero, i.e., temperature below which is not achievable, is about _____.
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DRDO MTS Tier - II
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General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 428
Addition of gypsum to cement:
HARD
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IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 432
Boric acid is an acid because its molecule:
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 433
The main constituent of Vinegar is:
HARD
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 434

Which of the following statements regarding heavy water are correct?

1. It is extensively used as a moderator in nuclear reactors.

2. It cannot be used in exchange reactions to study reaction mechanisms.

3. Viscosity of heavy water is relatively smaller than that of ordinary water.

4. The dielectric constant of heavy water is smaller than that of ordinary water.

Select the correct answer using the codes given below:

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DRDO MTS Tier - II
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General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 435

Which of the following are some important pollutants released by steel industry in India?

1. Oxides of sulphur

2. Oxides of nitrogen

3. Carbon monoxide

4. Carbon dioxide

Select the correct answer using the codes given below: