MEDIUM
NEET
IMPORTANT
Earn 100

In which case is number of molecules of water maximum?
(a) of water
(b) of water
(c) of water
(d) of water vapours at 1 atm and

50% studentsanswered this correctly

Important Questions on Some Basic Concepts of Chemistry
HARD
NEET
IMPORTANT
mixture of two divalent metals (at amu) and (at amu), on reacting with dilute solution, gives gas at , then composition of is (in ):

MEDIUM
NEET
IMPORTANT
An organic compound contains carbon, hydrogen and oxygen. Its chemical analysis gave and . The empirical formula of the compound would be:

HARD
NEET
IMPORTANT
In Duma's method of estimation of nitrogen of an organic compound gave of nitrogen collected at temperature and pressure. The percentage composition of nitrogen in the compound would be: (Aqueous tension at )

MEDIUM
NEET
IMPORTANT
The heat of combustion of carbon to is . The heat released upon formation of from carbon and oxygen gas is _________.

MEDIUM
NEET
IMPORTANT
Which of the following is dependent on temperature?

MEDIUM
NEET
IMPORTANT
Rearrange the following (I to IV) in the order of increasing masses and choose the correct answer (Atomic masses: and
molecule of oxygen.
atom of nitrogen.
molecular weight of oxygen.
atomic weight of copper.

MEDIUM
NEET
IMPORTANT
The maximum number of molecules is present in

MEDIUM
NEET
IMPORTANT
How many moles of magnesium phosphate, will contain mole of oxygen atoms?
