PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃CH₂CH(CH₃)CH(C₂H₅)Cl

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃CH₂C(CH₃)₂CH₂I

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

(CH₃)₃CCH₂CH(Br)C₆H₅

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃CH(CH₃)CH(Br)CH₃

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃C(C₂H₅)₂CH₂Br

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃C(Cl)(C₂H₅)CH₂CH₃

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃CH = C(Cl)CH₂CH(CH₃)₂

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

CH₃CH = CHC(Br)(CH₃)₂

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

p-ClC₆H₄CH₂CH(CH₃)₂

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

m-ClCH₂C₆H₄CH₂C(CH₃)₃

Name the following halide according to the IUPAC system and classify it as an alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halide:

o-Br-C₆H₄CH(CH₃)CH₂CH₃

Define “zero order reaction”.

In a first order reaction x → y, 40% of the given sample of compound remains unreacted in 45 minutes. Calculate rate constant of the reaction.

The major binding force in diamond is_______________ .

(a) Covalent bond                                                  

(b)  Ionic bond

(c) Metallic bond                                                   

(d)  Co-ordinate covalent bond

What is the covalency of nitrogen in N₂O₅?

A reaction is second order in A and first order in B.

(i) Write the differential rate equation.

(ii) How is the rate affected on increasing the concentration of A three times?

(iii) How is the rate affected when the concentrations of both A and B are doubled?

Give an example each of a molecular solid and an ionic solid.

For a reaction: 

Rate = k

(i) Write the order and molecularity of this reaction.

(ii) Write the unit of k.

For the first order thermal decomposition reaction, the following data were obtained:

Time / sec               Totalpressure / atm

0                              0.30

300                          0.50

Calculate the rate constant

(Given: log 2 = 0.301, log3 = 0.4771, log 4 = 0.6021)

Write two factors that affect the rate of reaction.