Question

In each of the following questions (5 to 7) statement of assertion (A) is given by the corresponding statement of reason(R) of the statements mark the correct answer as
a) both A and R are true and is R is the correct explanation of A
b) both A and R are true but R is not the correct explanation of A
c)A is true but R is false
d)A s false but R is true
5. ASSERTION: the least distance of distinct vision for a young adult with normal vision is is 20 cm
REASON: far point for in human eye with normal vision is infinity
6. ASSERTION: food chain is responsible for the entry of harmful chemicals in our bodies
REASON: the length and complexity of chain varies greatly
7.ASSERTION: isotopes have different physical properties
REASON: isotopes have different number of electrons
8. A compound X with the molecular formula C2H6 gives compound Y on heating with conc H2SO4. Molecular formula of compound Y is C2H4. Identify X and Y Give the equation of the reaction involved.
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Answer 1

Answer:

Good Question

Explanation:

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