HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Draw the structure of the major product of hydroboration-oxidation of propene.

Derive the equation which implies that the degree of dissociation of weak acid is inversely proportional to the square root of its concentration.

Distinguish between strong electrolyte and weak electrolyte.

An intensive property amongst the following is ______.

Ketones CANNOT be converted into carboxylic acid using _____________

What is cell constant?

Write a classification of aliphatic ketones with a suitable example.

Give the main difference between electrolytic conductivity and molar conductivity with respect to concentration. 

A First order reaction is 50% complete in 69.3 minutes. Time required for 90% completion for the same reaction is _______.

The rate law relates to the rate of a chemical reaction in terms of _______.

Order of reaction for which unit of rate constant is mol dm^–3 s^–1 is _______.

For the reaction \[\ce{2NO_{(g)} + 2H_{2(g)} -> N_{2(g)} + 2H2O_{(g)}}\],

The rate law is, rate = k[NO]² [H₂].

What is the overall order of reaction?

Write four key points about order of reaction.

Define order of reaction with suitable examples.

The type of isopropylamine is a ______________

A reaction occurs in the following steps:

Step 1: \[\ce{NO_{2(g)} + F_2 -> NO2F_{(g)} + F_{(g)}}\] (slow)

Step 2: \[\ce{F_{(g)} + NO_{2(g)} -> NO_2F}\] (Fast)

1. Write the equation of overall reaction.
2. Write the rate law.
3. Identify reaction intermediate.

For the reaction 2A + B → C, rate of disappearance of A 0.076 mol s ^–1.

1. What is the rate of formation of C?
2. What is the rate of consumption of B?
3. What is the rate of the overall reaction?

In a first-order reaction A → B, 60% of a given sample of a compound decomposes in 45 mins. What is the half-life of reaction? Also, write the rate law equation for the above first-order reaction.

Write IUPAC names of p-toluidine

Write IUPAC names of trimethylamine