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

What happens when chlorine reacts with?

Na

What happens when chlorine reacts with?

S₈

What happens when chlorine reacts with?

P₄

Draw the structure of chloric acid.

Draw the structure of chlorous acid.

What is the action of selenium on magnesium metal?

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

Atomic radii

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

Ionisation enthalpy

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

Electronegativity

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

Electron gain enthalpy

Polonium has the half-Life of ______.

Write the structure of HClO₄.

Write the chemical composition of cryolite.

Draw the structure of the following compound:

Peroxy disulphuric acid

Explain anomalous behaviour of oxygen in group 16 with respect to:

1. Atomicity
2. Magnetic property
3. Oxidation state

Give reason:

Bleaching action of ozone is also called dry bleach.

Write the chemical reaction when chlorine reacts with dry slaked lime.

Draw the structure of peroxymonosulphuric acid. 

Arrange the following in the increasing order of the property mentioned:

\[\ce{HOCl}\], \[\ce{HClO2}\], \[\ce{HClO3}\], \[\ce{HClO4}\] (acidic strength)

Arrange the following in the increasing order of the property mentioned:

\[\ce{HF}\], \[\ce{HCl}\], \[\ce{HBr}\], \[\ce{HI}\] (thermal stability)