A. They are in the same period
B. Their salts are colourless
C. They have the same number of valence electrons
D. They are very reactive

Correct Answer: Option C

C. They have the same number of valence electrons

SEE ALSO  Methanoic acid mixes with water in all proportions and has about the same boiling point as water. Which of the following methods would you adopt to obtain pure water from a mixture of Sand, water and methanoic acid?

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