A non metal use to preserve food material is
Anonymous Quiz
23%
Carbon
21%
Phosphrous
11%
Sulphur
45%
Nitrogen
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At which temperature is gypsm heated to from plaster of paris
Anonymous Quiz
15%
35 degree
30%
70 degree
21%
80 degree
34%
100 degree
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Dilute acid does not produce carbon dioxide on being treated with
Anonymous Quiz
22%
Marble
30%
Lime
37%
Baking soda
11%
Limestone
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Which one of the following salts will dissolve in water to form an alkaline solution
Anonymous Quiz
14%
Pottasium carbonate
46%
Sodium chloride
28%
Sodium carbonate
12%
Pottasium sulphate
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A concave mirror produce a magnification of +4 the object is placed
Anonymous Quiz
32%
At the focus
26%
Between focus
31%
Between focus and pole
10%
Beyond focus
👍4
Which of the following processe does not lead to the formation of clones
Anonymous Quiz
26%
Fertilisation
28%
Fission
31%
Tissue culture
15%
Fragmention
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👍3🔥1
In terms of acidic strength, which one of the following is in the correct increasing order?
Anonymous Quiz
38%
Water < Acetic acid < Hydrochloric acid
36%
Water < Hydrochloric acid < Acetic acid
22%
Acetic acid < Water < Hydrochloric acid
4%
None
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What is formed when zinc reacts with sodium hydroxide?
Anonymous Quiz
45%
Zinc hydroxide and sodium
28%
Sodium zinc-oxide and hydrogen gas
19%
Sodium zincate and hydrogen gas
8%
None
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Na2CO3 . 10H2O is
Anonymous Quiz
33%
washing soda
27%
Baking soda
29%
bleaching powder
11%
Tataric acid
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At what temperature is gypsum heated to form Plaster of Paris?
Anonymous Quiz
27%
90 degree celsius
51%
100 degree celsius
17%
120 degree celsius
6%
110 degree celsius
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