Fill in the blanks with the correct choice given in brackets.
(i) The basicity of acetic acid is [four /two/one]
(ii) Covalent bond is formed by of electrons.[transfer/sharing]
(iii) The chemical reaction in which heat is released is known as
reaction. [endothermic / exothermic]
(iv) Fe2+
imparts ______ colour to the salt solution on addition of NaOH
[reddish brown/ dirty green]
(v) The Modern Periodic Table consists of periods.[6 /7 /8]
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Answer:
1.one.
2.sharing.
3.exothermic.
4. 7 periods.
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