Question

b) Both assertion and reason are correct statement but reason is not correct
explanation of the assertion.
c) Assertion is correct but reason is incorrect statement.
d) Assertion is incorrect but reason is correct statement.
12. Assertion : The mean bond energy of all the four C-H bonds in CH4
molecule is equal.
Reason: After breaking C-H bonds one by one, the electronic environment
change.
13. Assertion : Mg and Be do not impart colour to the flame.
YReason: Like Alkali metals these do not impart colour as they have small
size.
14. Assertion : The molarity of the solution is independent of temperature,
/ Reason: The molarity of the solution is expressed in unit of moles per gram
of solvent.​

Answer 1

Answer:

12) b hai

13) a hai

14) b hai