Chemistry Test Preparations On Chemical Process Part 2

Test Preparation on Chemistry Test Preparations On Chemical Process Part 2

1.

Free alkali in a toilet soap is __________ that in a laundry shop.

1less than
2more than
3same
4none of these

2.

Dehydrogenation of isopropanol produces

1propyl alcohol
2acetone
3trichloroethylene
4formaldehyde

3.

Pick out the wrong statement.

1Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action.
2Soap powder is prepared by mixing soap with hydrated sodium carbonate.
3Detergents differ from soaps in their action in hard water.
4Tarnish inhibitor (e.g., benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc.

4.

The concentration of hydrogen peroxide is done by

1crystallisation
2vacuum crystallisation
3atmospheric distillation
4dehydration

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