EASY
DRDO MTS Tier - II
IMPORTANT
Earn 100

Which one of the following statements is not correct?

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Important Questions on Chemistry

EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 29
Which one of the following statements is not correct?
MEDIUM
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IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 30
Which one of the following is not a colloid?
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 31

Which of the following statements are correct? 

A. Sugarcane juice is fermented to form vinegar.

B. Vinegar has acetic acid.

C. Benzoic acid is the acid present in vinegar.

D. Vinegar is used as a preservative.

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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 32
Temporary hardness in water is due to_____ of Calcium and Magnesium.
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 34
A homogeneous mixture contains two liquids. How are they separated?
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 37
The valency of an element depends upon the:
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 38

Match the following:

  List-I (Noble gas)   List-II (Use)
A. Argon 1. In lights for advertising display
B. Neon 2. Airport landing lights and in lighthouses
C. Krypton 3. Light in photographer's flashgun
D. Xenon 4. In tungsten filament to the last longer
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 39
Radon is: