Science (English Medium) कक्षा १२ - CBSE Question Bank Solutions

What is the secondary valency of cobalt in [Co(en₂)Cl₂]⁺?

What should be the signs (positive/negative) for \[\ce{E^0_{cell}}\] and ΔG⁰ for a spontaneous redox reaction occurring under standard conditions?

Assertion (A): [Co(NH₃)₅SO₄]Cl gives a white precipitate with silver nitrate solution.

Reason (R): The complex dissociates to give Cl⁻ and \[\ce{SO^{2-}_4}\] ions.

What is IUPAC name of the ketone A, which undergoes iodo form reaction to give \[\ce{CH3CH = C(CH3)COONa}\] and yellow precipitate of \[\ce{CH3}\]?

Convert the following: 

Bromobenzene to benzoic acid

Calculate the λ⁰m for Cl- ion from the data given below:

∧⁰m MgCl₂ = 258.6 Scm² mol^-1 and λ⁰m Mg²⁺ = 106 Scm² mol^-1

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

\[\ce{CH3CH2C(CH3)2CH2I}\]

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

\[\ce{CH2CH2C(CH3)2CH2I}\]

Write the structure of the following compound:

Di-sec-butyl ketone

Write the structure of the following compound:

Di-sec-butyl ketone

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

\[\ce{CH3C(C2H5)2CH2Br}\]

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

\[\ce{CH3C(C2H5)2CH2Br}\]

Name the following compounds according to the IUPAC system of nomenclature:

\[\ce{(CH3)3CCH2COOH}\]

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

\[\ce{CH3C(C2H5)2CH2Br}\]

Can we construct an electrochemical cell with two half-cells composed of ZnSO₄ solution and zinc electrodes? Explain your answer.

The cell constant of a conductivity cell is 0.146 cm^-1. What is the conductivity of 0.01 M solution of an electrolyte at 298 K, if the resistance of the cell is 1000 ohm?

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

\[\ce{CH3CH2C(CH3)2CH2I}\]

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

CH₃C(C₂H₅ )₂CH₂Br

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

CH₃C(Cl)(C₂H₅)CH₂CH₃

Write the structure of the following compound.

Di-sec. butyl ketone