MEDIUM
DRDO MTS Tier - II
IMPORTANT
Earn 100

Which of the following gases has the highest average velocity at a certain temperature?

50% studentsanswered this correctly

Important Questions on Chemistry

MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 472
Dry bleach is done by :
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 474

Which of the following are not chemical changes ? 

1. Tempering of iron.

2. Conversion of iron piece into an electro-magnet by passing the current around the iron.

3. Melting of iron.

4. Rusting of iron.

Select the correct answer using the codes given below:

MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 476
Which of the following statements is correct?
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 477
The most of the mass of the atom can be found in _____.
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 478
Which of the following acids is a mineral acid ?
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 479
The most stable form of carbon is:
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 485
Dirty cloths containing grease and oil stains are cleaned by adding detergents to water. Stains are removed because detergent:
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 487
Which element forms the highest number of compounds in the periodic table ?