EASY
KVPY Aptitude Test - Stream SA
IMPORTANT
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The weight of calcium oxide formed by burning of calcium in excess oxygen is:

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Important Questions on Mole Concept - 1
EASY
KVPY Aptitude Test - Stream SA
IMPORTANT
By dissolving of sodium chloride in water, of salt solution is obtained. The molarity of the resulting solution should be reported as:

EASY
KVPY Aptitude Test - Stream SA
IMPORTANT
Upon mixing equal volumes of aqueous solutions of and the concentration of in the resulting solution is:

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KVPY Aptitude Test - Stream SA
IMPORTANT
The amount of metallic (Atomic weight ) required to react with aqueous sodium hydroxide to produce of is

MEDIUM
KVPY Aptitude Test - Stream SA
IMPORTANT
Natural abundances of and isotopes of carbon are and respectively. Assuming they only contributes to the molecular weight of the percentage of having a molecular mass of is

EASY
KVPY Aptitude Test - Stream SA
IMPORTANT
The volume of oxygen at required to burn of carbon completely is

EASY
KVPY Aptitude Test - Stream SA
IMPORTANT
Complete reaction of of calcium (atomic weight ) with excess produces of gas. Complete reaction of the same quantity of another metal with excess produces of gas under identical conditions. The equivalent weight of is closest to:

EASY
KVPY Aptitude Test - Stream SA
IMPORTANT
Three successive measurements in an experiment gave value and the correct way of reporting the average value is

MEDIUM
KVPY Aptitude Test - Stream SA
IMPORTANT
The ammonia evolved from of a compound in Kjeldahl's estimation of nitrogen neutralizes of solution. The weight percentage of nitrogen in the compound is:
