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

Define Green chemistry.

How are amines classified?

The type of mono halogen derivative in which a halogen atom is bonded to sp³ hybridized carbon atom next to carbon-carbon double bond is ______________

A paired cation-anion vacancy is called _______.

What are diamagnetic substances?

Identify ‘A’ and ‘B’ in the following reaction sequence.

\[\ce{CH3COOH + C2H5OH ->[H+][-H2O] A ->[H2/Ni][\Delta] B}\]

Which of the following is the product of reaction of ethane nitrile with Grignard reagent followed by acid hydrolysis?

Which of the following is the product of reaction of ethane nitrile with Grignard reagent followed by acid hydrolysis?

How many moles of electrons are required for reduction of 2 moles of Zn²⁺ to Zn?

Rate constant for the reaction \[\ce{2N2O5 -> 4NO2 + O2}\] is 4.98 × 10^–4 s^–1. Find the order of reaction?

What are aliphatic aldehydes?

What are aliphatic aldehydes?

Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.

What is the action of nitrous acid on the following compounds?

Isopropyl amine

Sulfur dioxide reacts with sodium hydroxide solution to form _______.

Write chemical formula of galena.

The number of lone pairs of electrons present in ClF₅:

Draw structure and name the shape of bromine trifluoride.

How are amines classified depending on the functional group? Give one example of each class of amines.

Explain the trend in the following atomic properties of group 16 elements:

Electron gain enthalpy