(a) Assertion and reason both are correct statements and reason is correct
explanation for assertion.
(b) Assertion and reason both are correct statements but reason is NOT
correct explanation for assertion.
(c) Assertion is correct statement but reason is wrong statement
(d) Assertion is wrong statement but reason is correct statement.
(i) Assertion: Hydrogen does not contain neutron.
Reason: Its nucleus is smallest in size.
(ii) Assertion: Different isotopes of the same element have the same
number of protons in their atomic nuclei.
Reason: Differing numbers of neutrons.
(iii) Assertion: Water molecules have the high melting and boiling
temperatures.
Reason: Because water molecules have coordination bond.
(iv) Assertion: Some ionic compounds are hydrolyzed in water.
Reason: Due to high dielectronic constant.
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Answer:(I) -b (ii) -b(iii) -a (iv) -a
Explanation:
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