EASY
JEE Main/Advance
IMPORTANT
Earn 100

Out of molarity , molality , formality and mole fraction those independent of temperature are:
(a)
(b)
(c)
(d)

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Important Questions on Some Basic Concepts of Chemistry
MEDIUM
JEE Main/Advance
IMPORTANT
molal solution has a density of . The molarity of the solution is :

EASY
JEE Main/Advance
IMPORTANT
An alloy of gold and silver contains silver by mass and has a density of . What is the molar concentration of silver in this alloy:(Atomic weight of Ag-108u)

EASY
JEE Main/Advance
IMPORTANT
"Suvarnabhasm", an ayurvedic drug, is found to contain of colloidal gold. Mass of gold (atomic mass of ) will be:

EASY
JEE Main/Advance
IMPORTANT
An aqueous solution of concentrated hydrobromic acid contains HBr by mass. If the density of the solution is , what is its concentration :(Atomic mass of Br=79.90u,H= 1u)

EASY
JEE Main/Advance
IMPORTANT
An antifreeze mixture consists of ethylene glycol by weight in aqueous solution. If the density of this solution is , what is the molar concentration :

EASY
JEE Main/Advance
IMPORTANT
fluorinates to and liberates Xenon (g). of can yield a maximum of of :

EASY
JEE Main/Advance
IMPORTANT
When of ethylene polymerises entirely to polyethene, the weight of polyethene formed as per the equation is:

HARD
JEE Main/Advance
IMPORTANT
A gram sample of natural gas containing and was burnt in excess of oxygen to give grams of and some water. How many grams of water are formed :
