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

Define isotonic solutions.

Write electronic configuration and two uses of neon. (Z = 10)

Write the electronic configuration of the following element:

Krypton (Z = 36)

Write cathode and anode reaction in a fuel cell.

Baeyer’s reagent is -'

(a) acidified potassium dichromate

(b) alkaline potassium dichromate

(c) alkaline potassium permanganate

(d) acidified potassium permanganate

Why ethanol has the higher boiling point than ethane?

Write a chemical equation for the action of neutral ferric chloride on phenol.

What are isotonic solutions? Explain with one example.

Oxidation states of scandium are ___________.

In Van Arkel method for refining zirconium or titanium, the halogen used is __________.

Write the molecular formula of noverstrol.

What are ethers?

How many faradays of electricity are required to produce 6 g of Mg from MgCl₂?

Derive van’t Hoff general solution equation.

Write the conditions for maximum work done by the system.

Write balanced chemical equation for the following :
Action of sodium metal on ethanol.

What is effective atomic number? Calculate effective atomic number of copper  ( Z = 29 ) in (Cu ( NH₃)₄)²⁺

Explain the position of actinoids in the periodic table.
What is the action of sulphur on lanthanoids? Calculate the magnetic moment of divalent ion in aqueous solution it its atomic number is 24.

Explain the following properties of group 16 elements :
1) Electro negativity
2) Melting and boiling points
3) Metallic character
4) Allotropy

What is the role of the following compound -
CaF₂ in metallurgy of aluminum?