Question

Non-metals do not displace hydrogen from dilute acids. They react with hydrogen
to form hydrides.
EXERCISE S
1. Which of the following pairs will give displacement reactions?
(a) NaCl solution and copper metal
(b)
MgCl, solution and aluminium metal
(c) Feso, solution and silver metal
(d) AgNO, solution and copper metal.
2. Which of the following methods is suitable for preventing an iron frying pan fı
rusting?
(a) Applying grease
(b) Applying paint
(e) Applying a coating of zinc
All of the above.
3. An element reacts with oxygen to give a compound with a high melting point
compound is also soluble in water. The element is likely to be
(a) calcium
(b) carbon
(c) silicon​

Answer 1

Answer:

1. b

2 all of the above

3. calcium

Answer 2

Answer:

1. B

2.all of the above

3. A

Explanation:

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