Reaction of Metals with Bases

Q.

Hydrogen gas is produced when metals reacts with acids.

1. Transition Metals

2. Alkali Metals

Q.

Name the non-metal which is employed to make the pink colored part of the matchsticks. How does it work?
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Q. When a piece of X is added to a sodium hydroxide solution, a gas Y is produced. Identify X and Y.

1. X- Gold Y- Hydrogen
2. X- Zinc Y- Hydrogen
3. X- Aluminium Y- Carbon dioxide
4. X- Charcoal Y- Carbon dioxide

Q. Give an example to illustrate that metallic oxides are generally basic in nature.

Q. Give an example to illustrate that metallic oxides are generally basic in nature.

Q.

Which of the following metals give hydrogen gas with steam acid and caustic alkalis?

1. Pb

2. Mg

3. Fe

4. Zn

Q. When a piece of X is added to a sodium hydroxide solution, a gas Y is produced. Identify X and Y.

1. X- Gold Y- Hydrogen
2. X- Aluminium Y- Carbon dioxide
3. X- Zinc Y- Hydrogen
4. X- Charcoal Y- Carbon dioxide

Q. Which of the following metals on reacting with sodium hydroxide solution produce hydrogen gas?
A. Cu B. Al
C. Fe D. Zn

1. B and C
2. A and D
3. B and D
4. B only

Q. Which of the following metals on reacting with sodium hydroxide solution produce hydrogen gas?
A. Cu B. Al
C. Fe D. Zn

1. B and D
2. A and D
3. B and C
4. B only

Q. Which of the following metals on reacting with sodium hydroxide solution produce hydrogen gas?
a. $Cu$
b. $Al$
c. $Fe$
d. $Zn$

1. b and d
2. b and c
3. a and d
4. b only

Q.

Which of the following metals is used in the laboratory preparation of hydrogen gas?

1. Zinc

2. Sodium

3. Aluminium

4. Lead

Q. A highly reactive element X is stored under water. It readily reacts with oxygen of air to give a compound Y which dissolves in water. The aqueous solution of Y changes blue litmus solution to red. The element X is____

1. Sodium
2. Sulphur
3. Phosphorous
4. Potassium

Q. Which of the following metals on reacting with sodium hydroxide solution produce hydrogen gas?
A. Cu B. Al
C. Fe D. Zn

1. B and C
2. A and D
3. B and D
4. B only

Q.

When NaOH reacts with Aluminium metal, following reaction occurs:

$NaOH+Al\to Na\left[Al\right(OH{)}_4]+Y$

If Y is a gas, identify it.

1. $H_{2}O$

2. $H_2$

3. $C{H}_4$

4. $N{O}_2$