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Nowadays yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps?

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Important Questions on Chemistry

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German silver, an alloy, does not contain the metal
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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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Which of the following pairs is incorrect?

I. Haematite: Iron

II. Pitchblende : Copper

III. Monazite: Thorium

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Which of the following metal (shown by its symbol) is generally used for making filaments of the bulb?
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Which metal is responsible for Itai-Itai disease?
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In order to prevent it from coming in contact with oxygen, sodium metal is kept under ________.
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Which of the following when mixed with a metal forms amalgam?