Baking soda or baking powder is:

1. Washing soda

2. Caustic soda

3. Soda ash

4. Sodium bicarbonate

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
 80%
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The element which does not dissolve in caustic soda is:

1. silicon

2. aluminium

3. zinc

4. cadmium

Subtopic:  Chemical Properties |
 54%
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The principal products obtained on heating iodine with concentrated caustic soda solution are:

1. NaOI + NaI

2. NaIO3 + Nal

3. NaOI + NaIO3 + NaI

4. NaIO4 + NaI

Subtopic:  Chemical Properties |
 51%
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The formula of washing soda is:

1. Na2CO3

2. Na2CO3.H2O

3. Na2CO3.7H2O

4. Na2CO3.10H2O

Subtopic:  Compounds of Ca and Na -Preparations, Properties & Uses |
 87%
From NCERT
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When sulphur is heated with NaOH(aq) the compounds formed are:

(1) Na2S + H2O

(2) Na2SO3 + H2O

(3) Na2S + Na2S2O3 + H2O

(4) Na2S2O3 + H2O

Subtopic:  Preparations, Properties & Uses of S Block Elements |
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NaOH is prepared by the electrolysis of:

1. aqueous solution of sodium chloride with platinum electrodes

2. molten sodium chloride with graphite anode and iron cathodes

3. sodium carbonate with platinum electrodes

4. sodium carbonate with nickel electrodes

Subtopic:  Preparations, Properties & Uses of S Block Elements |
 67%
From NCERT
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Fusion of AgCl with Na2CO3 gives:

1. Ag2CO3

2. silver carbide

3. Ag

4. Ag2

Subtopic:  Chemical Properties |
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Which of the following acts as reducing agent as well as oxidising agent?

1. Na2O

2. Na2O2

3. NaNO3

4. KNO3

Subtopic:  Chemical Properties |
 70%
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Nitrates of I group (except LiNO3) on heating give:

1. O2

2. N2

3. NO

4. NO2

Subtopic:  Chemical Properties |
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The most basic compound among the following is -

1. RbOH

2. KOH

3. LiOH

4. NaOH

Subtopic:  Physical Properties |
 76%
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