Brine is an
Anonymous Quiz
32%
aqueous solution of sodium hydroxide
36%
aqueous solution of sodium chloride
17%
aqueous solution of sodium carbonate
14%
All
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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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Forwarded from Shubham Jha - Class 9
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The number of protons in an atom of an element A is 19 then, the number of electron in its ion A+ is:
Anonymous Quiz
26%
18
53%
19
19%
20
2%
21
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The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as
Anonymous Quiz
35%
Roasting
32%
Smelting
25%
Calcination
9%
Refining
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enzymes pepsin and trypsin are secreted respectively by
Anonymous Quiz
34%
Stomach and pancreas
27%
Salivary gland and stomach
37%
Liver and pancreas
2%
None
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Among the following choose the correct option which includes the organisms that have a holozoic mode of nutrition:
Anonymous Quiz
42%
Plasmodium and Amoeba
25%
Parakeet and Amoeba
24%
Paramecium and Plasmodium
9%
Paramecium and Parasite
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Which of the given properties is generally not shown by metals?
Anonymous Quiz
21%
Electrical conduction
17%
Ductility
47%
Dullness
14%
Sonorous
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