Which one of the following salts does not con-tain water of crystallisation?
(a) Blue vitriol
(b) Baking soda
(c) Washing soda
(d) Gypsum
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Which one of the following salts does not con-tain water of crystallisation?
(a) Blue vitriol
(b) Baking soda
(c) Washing soda
(d) Gypsum
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Answer:
B - Baking soda
1 Answer. B - Baking soda does not contain water of crystallization. The chemical formula of baking soda is NaHCO3. Its formula does not show any association with water molecules.
Answer:
Which of the following gases are filled in electric bulbs?(a) Helium and Neon
Which of the following gases are filled in electric bulbs?(a) Helium and Neon(b) Neon and Argon
The answer is Neon and Argon
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