Is `3^2` equal to `2^3` ? Justify.

Mohith said " H_2 differs from 2H." Justify.

If the sum (3)/(1^(2)) + (5)/(1^(2) + 2^(2)) + (7)/(1^(2) + 2^(2) + 3^(2)) + …+ upto 20 terms is equal to (k)/(21) , then k is equal to

f: R to R defined by f(x)=(2x+1)/(3) , then this function is injection or not? Justify.

PCl _(3) can act as an oxidizing as well as a reducing agent - Justify.

[Cu(NH_(3))_(4)]^(2+) is paramagnetic and square planar complex. Justify.

Is 7xx5xx3xx2+3 a composite number ? Justify your answer.

Which of the following compounds are unsaturated ? Justify your answer. CH_3-CH-=CH_2

Rakesh solved some problems of exponents in the following way. Do you agree with the solutions ? If not why ? Justify your argument : (x^2)^3=x^(2^3)=x^8

If the prime factorization of a natural number (n) is 2^2xx3^2xx5^2xx7. How many consecutive zeroes will it have at the end of it? Justify your answer.