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DRDO MTS Tier - II
IMPORTANT
Earn 100

Which of the following statements with regard to Portland cement are correct?

1. Silica imparts strength to cement.
2. Alumina makes the cement quick setting.
3. Excess of the line increases the strength of cement.
4. Calcium sulphate decreases the initial setting time of cement.

Select the correct answer using the codes given below:

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Important Questions on Chemistry

EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 416
Red phosphorus is used in the manufacture of safety matches. This is due to the fact that:
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 417
Which one of the following statements is not correct?
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 418
Which one of the following is not true for diamond?
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 419
The atomic theory of matter was first proposed by:
EASY
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 420
Which one of the following minerals contains mostly silica?
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 421
Which one among the following is used in making Gunpowder?
MEDIUM
DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 422
The cleaning action of soap and detergent in water is due to the formation of_____.
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DRDO MTS Tier - II
IMPORTANT
General Science for Competitive Exams>Chapter 2 - Chemistry>MCQs>Q 424
Which one of the following statements is correct?