Ative Meatal Questions?

1: Temporary Hard Water usually contains calcium:

Bicarbonate

Carbonite

Sulfate

Sulfite

2: The alkaline earth metals typically contain a valence charge of

-2

-1

+1

+2

3: The hardening of plaster of Paris is caused by the action of:

Carbon Dioxide

Nitrogen

Oxygen

Water

4: A water suspension of calcium hydroxide is known as:

Quicklime

Lemon water

Milk of lime

Cement

5: When Hydrochoric acid is applied to a seashell, a colorless gas rapidly evolves. This indicates that the shell probably contains:

Phosphate

Carbonate

Chloride

Sulfate

6: The permutit process is used for

Sodium Hydroxide Production

Detergent making

“Softening”

Carbonate of sodium production

7: All of the following are Aluminum alloys except:

Duralumin

Magneselum

Alclad

Magnalium

8: Which of the following is most important in current industry production?

Be

W

Na

Al

9: A substance that can act as either an acid or a base is known as:

Phototeric

Ambidextrous

Amphoteric

Anamorphic

10: Which of the following elements is most unlike the others?

Mg

Ca

Br

Pb

1) Bicarbonate

2) +2

3) water

4) Milk of Lime

5) Carbonate

6) Softening hard water

7) Alclad

8) Al

9) Amphoteric

10) Br.

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