HSC Science (Computer Science) १२ वीं कक्षा - Maharashtra State Board Important Questions

What is the action of the following reagents on phenol - H₂SO₄ at room temperature.

How is carbolic acid prepared from the given compounds :

Chlorobenzene and steam at 698K?

Write the main constituents of dettol.

Write balanced chemical equation for the following :
Action of zinc dust on phenol.

Write a preparation of phenol from cumene? What happens when phenol is heated with zinc dust? 

Write structural formula for pentane-1,4-diol.

Write structural formulae for Cyclohex-2-en-1-ol.

Isopropylbenzene on air oxidation followed by decomposition by dilute acid gives ______.

Write preparation of phenol from aniline.

Convert the following:

Ethyl alcohol into ethyl acetate.

Write Dow process for the preparation of Phenol.

Explain metamerism with suitable examples of ethers

How is Methoxyethane prepared from : Methyl iodide

Carbon atom in methyl carbocation contains how many pairs of electrons?

(a) 8

(b) 4

(c) 3

(d) 5

How is diethyl ether prepared by continuous etherification process?

Ethylidene dichloride when boiled with aqueous solution of NaOH yields _______.

(A) formaldehyde

(B) acetaldehyde

(C) acetone

(D) ethyl methyl ketone

How is nitroethane converted into ethylamine.

Natalite is a mixture of

(a) diethyl ether and methanol

(b) diethyl ether and ethanol

(c) dimethyl ether and methanol

(d) dimethyl ether and ethanol

Which of the following compounds is NOT prepared by the action of alcoholic NI₃ on alkyl halide?

(a) CH₃NH₂

(b) CH₃- CH₂- NH₂

(c) CH₃ - CH₂ - CH₂ - NH₂

(d) (CH₃)₃ C- NH₂

Write the structure and IUPAC name of 'methyl-n-propyl ether'.