HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

The oxidation state of nitrogen in dinitrogen trioxide is ____

(a) + 1

(b) + 2

(c) + 3

(d) + 4

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.

Draw the structures of adenine.

What are isotonic solutions? Explain with one example.

A compound used as pistachio flavour in ice cream is ___________

A compound used as pistachio flavour in ice cream is ___________

Oxidation states of scandium are ___________.

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

Write the molecular formula of noverstrol.

Write the number of hydroxyl groups present in α - D (+) -Glucopyranose (trans.)

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⁺

Define Enantiomers.

Define Enantiomers.