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

Rewrite the following reaction by filling the blanks:

\[\ce{CH3 - CH - CH2 + HBr -> \underset{(major)}{\underline{}\underline{}\underline{}\underline{}} + \underset{(minor)}{\underline{}\underline{}\underline{}\underline{}}}\]

Rewrite the following reaction by filling the blanks:

\[\ce{CH3 - CH = CH2 + HBr ->[peroxide] \underset{(major)}{\underline{}\underline{}\underline{}\underline{}} + \underset{(minor)}{\underline{}\underline{}\underline{}\underline{}}}\]

Rewrite the following reaction by filling the blanks:

\[\ce{(CH3)2C = CHCH3 + HBr ->[peroxide] \underset{(major)}{\underline{}\underline{}\underline{}\underline{}} + \underset{(minor)}{\underline{}\underline{}\underline{}\underline{}}}\]

The number of octahedral sites per sphere in ccp structure is ______.

Formulate the galvanic cell in which the following reaction occurs.

2Al(S) + 3Cu²⁺(aq) → 2Al³⁺(aq) + 3Cu(S)

Derive integrated rate law for zero order reaction.

What is the effect of denaturation on the structure of proteins?

Calculate the pH of a buffer solution containing 0.1 M CH₃COOH and 0.05 M CH₃COONa. Dissociation constant of CH₃COOH is 1.8 × 10^-5 at 25°C.

Give two reactions in which acidified K₂Cr₂O₇ is used as an oxidizing agent.

A voltaic cell consisting of Fe²⁺(aq)| Fe(s) and Bi³⁺(aq)| Bi(s) electrodes is constructed. When the circuit is closed, mass of Fe electrode decreases and that of Bi electrode increases.

1. Write cell formula .
2. Which electrode is cathode and which electrode is anode?
3. Write electrode reactions and overall cell reaction.

Identify the product in the following reaction: 

Define pH.

How are the following compound obtained from alcohol?

Methanal

How are the following compound obtained from alcohol?

Propanal

Discuss S_N2 mechanism of methyl bromide using aqueous KOH.

The degree of dissociation of 0.1 M monobasic acid is 0.4%. Its dissociation constant is ______.

What is ozone umbrella?

What is EAN rule?

Define the colligative properties.

Name any two colligative properties.