HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

Write any four properties of interstitial compounds.

What is a ferrous alloy?

What is a non-ferrous alloy?

Write any two uses of alloy.

Nanorods are the example of _____________

Name the catalyst used to manufacture H₂SO₄ by contact process.

Write any example of nanoparticles which is used in photocatalysis.

Complete and write the following table

Write a short note on the catalytic activity of nanoparticles.

Derive integrated rate law for a zero-order reaction \[\ce{A -> Product}\].

An ideal gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 bar from an initial volume of 2.50 dm³ to a final volume of 4.50 dm³. The change in internal energy (∆U) of the gas will be ______.

The pH of 0.001 M HCl solution is ______.

Write the product formed when alkyl halide reacts with silver nitrite.

Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.

What is the action of selenium on magnesium metal?

Write the name of the alloy used in the Fischer Tropsch process in the synthesis of gasoline.

Explain formation of peptide linkage in protein with an example.

Salts of Ti⁴⁺ are colourless. Give reason.

What is the action of sodium hypoiodite on acetone?

Derive the relationship between pH and pOH.