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Unit#7: Nitrogen, Sulphur and Metals

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1

Which oxide reacts with hydrochloric acid?

2

Which metal is commonly used for galvanizing iron?

3

Which oxide is neutral?

4

Acid rain mainly damages:

5

Which metal does not react with oxygen easily?

6

Amphoteric oxides react with:

7

Which gas is released during the reaction of zinc with dilute sulphuric acid?

8

Which gas is primarily responsible for acid rain formation?

9

Which metal is more reactive, zinc or iron?

10

Which gas is released when metals react with acids?

11

The main source of nitrogen oxides in air is:

12

Which metal reacts slowly with cold water?

13

Which catalyst is used in Haber’s process?

14

Which substance acts as a promoter in Haber’s process?

15

Which oxide reacts with sodium hydroxide?

16

Which metal is used as a catalyst in Haber’s process?

17

Photochemical smog is mainly formed due to the reaction of nitrogen oxides with:

18

Which oxide is acidic in nature?

19

Which metal reacts with oxygen to form a protective oxide layer?

20

Which metal is least reactive?

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