HSC Science (Electronics) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

Define “zero order reaction”.

In a first order reaction x → y, 40% of the given sample of compound remains unreacted in 45 minutes. Calculate rate constant of the reaction.

A → B is a first order reaction with rate 6.6 × 10^-5m-s^-1. When [A] is 0.6m, rate constant of the reaction is

• 1.1 × 10^-5s^-1
• 1.1 × 10^-4s^-1
• 9 × 10^-5s^-1
• 9 × 10^-4s^-1

What is metamerism? 

What is metamerism? 

What is metamerism? 

Explain metamerism with suitable examples of ethers

Explain metamerism with suitable examples of ethers

Explain metamerism with suitable examples of ethers

How are ketones classified?

Write the formula of Tetraminodichloroplatinum (IV) chloridex.

What is calcination?

Explain calcination with reactions.

Which of the following vitamins is water soluble?

1. A
2. D
3. E
4. B

Write the structures and IUPAC names of the :Adipic acid compound

Write the structures and IUPAC names of the α - methyl butyraldehyde.

Define lanthanoid contraction.

0.1 mole of Buckminster fullerene contains how many kg of carbon? [Atomic mass of carbon = 12]

Define Hydrometallurgy?

What is the position of iron (Z = 26) in periodic table?