Out of coke and CO, which is better reducing agent for the reduction of ZnO? Why?

Give the uses of Borax

Give the uses of helium.

Why Gd³⁺ is colourles?

Give an example of coordination compound used in medicine and two examples of biologically important coordination compounds.

Differentiate crystalline solids and amorphous solids.

Derive integrated rate law for a zero order reaction A\(\longrightarrow \) product.

What is the order with respect to each of the reactant and overall order of the following reactions?
a) 5Br^-_(aq)+BrO₃^-_(aq)+6H⁺_(aq) ➝3Br_2(l)+3H₂O_(l)
The experimental rate law is Rate = k [Br⁻][BrO₃⁻][H⁺]²
b) CH₃CHO_(g)\(\overset { \Delta }{ \longrightarrow } \) CH_4(g)+CO_(g) the experimental rate law is
Rate =K[CH₃CHO]^{\(\frac{3}{2}\)}

The concentration of hydroxide ion in a water sample is found to be 2.5 × 10^-6M. Identify the nature of the solution.

Calculate the pH of 0.001M HCl solution

State Faraday’s Laws of electrolysis

Heat of adsorption is greater for chemisorptions than physisorption. Why?

Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI.

A Compound (A) with molecular formula C₂H₃N on acid hydrolysis gives (B) which reacts with thionylchloride to give compound(C). Benzene reacts with compound (C) in presence of anhydrous AlCl₃ to give compound(D). Compound (D) on reduction with Zn/Hg and Conc.HCl gives (E).  Identify (A), (B), (C) (D) and (E). Write the equations.

Give the characteristics of image formed by a plane mirror.

How will you convert nitrobenzene into
i. 1,3,5 - trinitrobenzene
ii. o and p- nitrophenol
iii. m – nitro aniline
iv. azoxybenzene
v. hydrozobenzene
vi. N – phenylhydroxylamine
vii. aniline

Write the Zwitter ion structure of alanine

Write a note on synthetic detergents