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

What are electrochemical reactions?

Explain factors affecting the rate constant of a chemical reaction.

Explain the classification of alcohol and phenol.

State the functions of RNA and DNA.

______ is a radioactive element in group 16 elements.

Explain the types of electrochemical cells.

Define transition elements.

Name the distinguishing test for differentiating 1° amine from 2° and 3° amine.

For the reaction, \[\ce{3I^-(aq) + S2O^2-_8(aq) -> I^-_3(aq) + 2SO^2-_4(aq)}\]

`(d[SO_4^(2-)])/dt = 2.2 xx 10^(-2)` M/s at a particular time.

Calculate `(a) -(d[I^-])/dt   (b) -(d[S_2O_8^(2-)])/dt   (c) (d[I_3^-])/dt`

Write the name and formula of oxoacid of fluorine.

Write the expression for work done in a chemical reaction.

______ is a gaseous element of group 16.

Inner transition elements are placed in ______ period.

Define Amines.

Identify A and B:

\[\ce{C6H5CH2Br ->[Alc.][KCN] A ->[Na/Ethanol] B}\]

The transition elements are placed in period ______.

What is the rate law for reaction

\[\ce{2NO_{2(g)}-> 2NO_{(g)} + O_{2(g)}}\]

Identify product in:

Identify product in:

Write the correct molecular formula of gypsum.