HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

What are ligands?

\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.

\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.

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

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

Define boiling point

Define cell constant.

Conductivity of a solution is 6.23 x 10^-5  Ω^-1cm^-1 and its resistance is 13710Ω. If the electrodes are 0.7cm apart, calculate the cross-sectional area of electrode.

Why is molality of a solution independent of temperature?

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.

A → B is a first order reaction with rate 6.6 × 10^-5m-s^-1. When [A] is 0.6m, rate constant of the reaction is

• 1.1 × 10^-5s^-1
• 1.1 × 10^-4s^-1
• 9 × 10^-5s^-1
• 9 × 10^-4s^-1

What is metamerism? 

What is metamerism? 

What is metamerism? 

Explain metamerism with suitable examples of ethers

Explain metamerism with suitable examples of ethers

Explain metamerism with suitable examples of ethers

How are ketones classified?

Write the formula of Tetraminodichloroplatinum (IV) chloridex.

What is calcination?