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Standard XII

Chemistry

Acid Catalysed Acetal Formation

Fill in he bl...

Question

Fill in he blanks:
1. A water soluble base is known as __

2. The number of replaceable hydroxyl groups in ne molecule of a base is called its _

3. __ acid does not liberate hydrogen gas when reacted with zinc.

4. Sodium acetate is a _ saly.

5. ____ is used as an antacid.

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Solution

1. A water soluble base is known as alkali

2. The number of replaceable hydroxyl groups in the molecule of a base is called its acidity.

3. Nitric acid does not liberate hydrogen gas when reacted with zinc.

4. Sodium acetate is a basic salt.

5. Sodium bicarbonate is used as an antacid.

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Similar questions

Fill in the blanks with suitable words :

An acid is a compound which when dissolved in water forms hydronium ions as the only ________ ions.

A base is a compound which is soluble in water contains ________ ions. A base reacts with an acid to form a ________ and water only. This type of reaction is known as ________

Give one example in each case :

(a) A basic oxide which is soluble in water,

(b) A hydroxide which is highly soluble in water,

(d) A hydroxide which is insoluble in water,

(e) A weak mineral acid,

(f) A base which is not an alkali,

(g) An oxide which is a base,

(h) A hydrogen containing compound which is not an acid,

(i) A base which does not contain a metal ion.

Q. Give one example in each case:
(a) A basic oxide which is soluble in water.
(b) A hydroxide which is highly soluble in water.
(c) A basic oxide which is insoluble in water.
(d) A hydroxide which is insoluble in water.
(e) A weak mineral acid.
(f) A base which is not an alkali.
(g) An oxide which is a base.
(h) A hydrogen containing compound which is not an acid.

Correct the following statements :

(a) Hydrogen is used as a fuel for rocket propulsion.

(b) All metals react with acids to give hydrogen.

(d) Very dilute nitric acid reacts with zinc to produce hydrogen.

(e) $C o n c . H_{2} S O_{4}$ reacts with zinc to liberate hydrogen.

Q. Mark the appropriate choice to fill up the blanks in the given paragraph.

A solution which maintains a constant pH when small amounts of acid or base are added is known as a ___

(i)

___. A mixture of acetic acid and sodium acetate acts as ___

(i i)

___ with a

p H

around ____

(i i i)

___ and a mixture of ammonium chloride and ammonium hydroxide acts as ___

(i v)

____ with a

p H

around ___

(v)

____.

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Fill in he blanks:1. A water soluble base is known as ____ 2. The number of replaceable hydroxyl groups in ne molecule of a base is called its ___ 3. ____ acid does not liberate hydrogen gas when reacted with zinc. 4. Sodium acetate is a ___ saly. 5. ____ is used as an antacid.

1. A water soluble base is known as alkali 2. The number of replaceable hydroxyl groups in the molecule of a base is called its acidity. 3. Nitric acid does not liberate hydrogen gas when reacted with zinc. 4. Sodium acetate is a basic salt. 5. Sodium bicarbonate is used as an antacid.

Fill in he blanks:
1. A water soluble base is known as __

2. The number of replaceable hydroxyl groups in ne molecule of a base is called its _

3. __ acid does not liberate hydrogen gas when reacted with zinc.

4. Sodium acetate is a _ saly.

5. ____ is used as an antacid.

1. A water soluble base is known as alkali

2. The number of replaceable hydroxyl groups in the molecule of a base is called its acidity.

3. Nitric acid does not liberate hydrogen gas when reacted with zinc.

4. Sodium acetate is a basic salt.

5. Sodium bicarbonate is used as an antacid.