How are 'anions' formed?
(A) Addition of electron
(B) Removal of electron
(C) Addition of proton
(D) Removal of proton
What is the common name of CaoCl2?
(A) Washing Soda
(B) Bleaching Powder
(C) Baking Powder
(D) Baking Soda
Which of the following has the least melting point?
(A) Carbon
(B) Silver
(C) Mercury
(D) Gold
Which of the following gases turn lime water milky?
(A) Carbon Dioxide
(B) Oxygen
(C) Nitrogen
(D) Hydrogen
The stranger gas is also known as___________.
(A) Helium
(B) Argon
(C) Xenon
(D) Neon
The percentage of nitrogen present in ammonium sulphate is:
(A)
(B)
(C)
(D)
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