HSC Science (Computer Science) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Chemistry

Terylene is _____.

Choose the correct option from the given alternatives.

PET is formed by _______.

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Chemically pure cotton is _______.

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Teflon is chemically inert, due to presence of _______.

What are amines?

Answer the following in one sentence.

Define the term: Monomer

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Which of the following information is given by the FTIR technique?

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The concept of green chemistry was coined by ________.

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?