Physical Chemistry
Some Basic Concepts of Chemistry
Fill in the BlanksNumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveStructure of Atom
Fill in the BlanksNumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveTrue of FalseGaseous State
Fill in the BlanksNumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveTrue of FalseChemical Kinetics and Nuclear Chemistry
NumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveInorganic Chemistry
Periodic Table & Periodicity
Fill in the BlanksNumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveTrue of FalseChemical Bonding & Molecular Structure
Fill in the BlanksNumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveTrue of FalseOrganic Chemistry
Basics of Organic Chemistry
Fill in the BlanksNumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)SubjectiveAldehydes, Ketones and Carboxylic Acids
NumericalMCQ (Single Correct Answer)MCQ (Multiple Correct Answer)Chemistry in Everyday Life
MCQ (Single Correct Answer)1
IIT-JEE 1988
Subjective
+2
-0
A sugar syrup of weight 214.2 g contains 34.2 g of sugar (C12H22O11). Calculate (i) molal concentration and (ii) mole fraction of sugar in the syrup
2
IIT-JEE 1988
Subjective
+3
-0
A sample of hydrazine sulphate (N2H6SO4) was dissolved in 100 ml. of water, 10 ml of this solution was reacted with excess of ferric chloride solution and warmed to complete the reaction. Ferrous ion formed was estimated and it required 20 ml of M/50 potassium permanganate solution. Estimate the amount of hydrazine sulphate in one litre of the solution.
Reaction:
4Fe3+ + N2H4 $$\to$$ N2 + 4Fe2+ + 4H+
$$MnO_4^-$$ + 4Fe2+ + 8H+ $$\to$$ Mn2+ + 5Fe3+ + 4H2O
Reaction:
4Fe3+ + N2H4 $$\to$$ N2 + 4Fe2+ + 4H+
$$MnO_4^-$$ + 4Fe2+ + 8H+ $$\to$$ Mn2+ + 5Fe3+ + 4H2O
3
IIT-JEE 1985
Subjective
+4
-0
Five ml of 8N nitric acid, 4.8ml of 5N hydrochloric acid and a certain volume of 17M sulphuric acid are mixed together and made upto 2 litre. Thirty ml of this acid mixture neutralise 42.9 ml of sodium carbonate solution containing one gram of Na2CO3.10H2O in 100 ml of water. Calculate the amount in gram of the sulphate ions in solution.
4
IIT-JEE 1983
Subjective
+4
-0
4.08 g of a mixture of BaO and an unknown carbonate MCO3 was heated strongly. The residue weighed 3.64 g. This was dissolved in 100 ml of 1 N HCl. The excess acid required 16 ml of 2.5 N NaOH solution for complete neutralization. Identify the metal M. (At wt. H = 1, C = 12, O = 16, Cl = 35.5, Ba = 138)
Questions Asked from Subjective
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