statement 1: Hydrogen is most abundant in universe but not so in Earth's tropoosphere
statement 2: Hydrogen is the lightest element.

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Hydrogen is the most abundatn element in the Universe, but it is not the most abundant gas in the troposphere . Reason R : Hydrogen is the lightest element . In the light of the above statements , choose the correct answer from the options given below :

Incorrect statement about hydrogen

The most abundant element in the universe is

The second most abundant element on Earth's crust is:

Iron is the ____most abundant element in the earth's crust.

The most abundant element in the universe is:

Hydrogen is the lightest of all elements known to us.

Name three most abundant elements in earth's crust