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The process of gaining electrons is known as ______.

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Important Questions on Chemistry

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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 26
To prevent rancidity of oil ( due to oxidation) in which potato chips are fried, the bags of chips are flushed with the gas ______.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 27
Metals are good conductors, because ______.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 28
Which among the following is liquid non-metal?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 29
Which one of the following pairs is not correctly matched?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 30
Nowadays yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 31
German silver, an alloy, does not contain the metal
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 32

Which of the following causes the rusting of iron?

(i) Oxidation

(ii) Reduction

(iii) Chemical reaction with oxygen

(iv) Chemical reaction with CO2

Select the correct answer using the codes given below

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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 33

Which of the following pairs is incorrect?

I. Haematite: Iron

II. Pitchblende : Copper

III. Monazite: Thorium