Give the limitations of Ellingham diagram.

How will you identify borate radical?

Deduce the oxidation number of oxygen in hypofluorous acid – HOF.

Which is stronger reducing agent Cr²⁺ or Fe²⁺?

What are hydrate isomers? Explain with an example.

Write the oxidation state, coordination number , nature of ligand, magnetic property and electronic configuration in octahedral crystal field for the complex K₄[Mn(CN)₆]

An atom crystallizes in fcc crystal lattice and has a density of 10 gcm⁻³ with unit cell edge length of 100pm. Calculate the number of atoms present in 1 g of crystal.

A zero order reaction is 20% complete in 20 minutes. Calculate the value of the rate constant. In what time will the reaction be 80% complete?

Write the expression for the solubility product of Ca₃(PO₄)₂

Calculate i) degree of hydrolysis, ii) the constant hydrolysis  and iii) pH of 0.1M CH₃COONa solution (pK_a for CH₃COOH is 4.74).

The same amount of electricity was passed through two separate electrolytic cells containing solutions of nickel nitrate and chromium nitrate respectively. If 2.935 g of Ni was deposited in the first cell. The amount of Cr deposited in the another cell? Give : molar mass of Nickel and chromium are 58.74 and 52gm^-1 respectively.

Give three uses of emulsions.

Write a note on electro osmosis.

What is the difference between homogenous and hetrogenous catalysis?

An organic compound (A) molecular formula CH₂O reacts with CH₃MgI to give compound (B). Compound (B) liberates Hydrogen with metallic sodium. Compound (B) in the presence of Con. H₂SO₄ at 410 K on dehydration to give compound (C) molecular formula C₄H₁₀O. Identify (A), (B) and (C). Explain the above reactions.

Complete the following reaction
\({ CH }_{ 3 }-{ CH }_{ 2 }-{ CH }_{ 2 }-\underset { \overset { || }{ O } }{ C } -{ CH }_{ 3 }\overset { HO-{ CH }_{ 2 }-{ CH }_{ 2 }-OH }{ \underset { { dry }{ HCl} }{ \longrightarrow } } ?\)

Identify A aniline + benzaldehyde → A

What are different types of RNA which are found in cell

What are anti fertility drugs? Give examples.