Wednesday, October 7, 2009

IIT JEE Chemistry Final Revision Sets No.40

1. Assertion-Reason type

Addition of Br2 to 1–butene gives two optical isomers.

The product contains one asymmetric carbon.

2. Assertion reason type

LiCl is predominantly a covalent compound.

Electronegativity difference between Li and Cl is too small.

3. Assertion reason type

HNO3 is a stronger acid than HNO2.

In HNO3 there are two nitrogen-to-oxygen bonds whereas in HNO2 there is only one.

4. What will be the resultant pH when 200 mL of an aqueous solution of HCI (pH = 2.0) is mixed with 300 mL of an aqueous solution of NaOH (pH = 12.0)?

5. A evacuated glass vessel weighs 50.0 g when empt, 148.0 g when filled with a liquid of density 0.98 mL-1 and 50.5 g when filled with an ideal gas at 760 mm Hg at 300 K. Determine the molar mass of the gas.

Source JEE 1998

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