List of top Chemistry Questions on Chemical Reactions

Identify the product A in the following reaction.
Reaction
For the reaction 2A⇋ B + C, KC = 4 × 10–3 . At a given time, the composition of reaction mixture is: [A] = [B] = [C] = 2 × 10–3 M. Then, which of the following is correct?
What are X and Y respectively in the following reactions? \includegraphics[]{159.png}
Two of the products formed by the reaction of \(X\) with HCl are gases. What is \(X\)? HCl with \(X\) forms gaseous products, two of which are identified.
Identify the products formed when zinc reacts with sodium hydroxide solution. Options:
Which of the following reactions is not a metal displacement reaction?
In which of the following reactions, dihydrogen is not evolved?
Which of the following is used in liquid detergents?
Identify the set of molecules which act as bleaching agents only by oxidation
Two statements are given below. Statement I: Adsorption of a gas on the surface of charcoal is primarily an exothermic process.
Statement II: A closed vessel containing \( O_2(g) \), \( H_2(g) \), \( Cl_2(g) \), \( NH_3(g) \) has a pressure of 9 atm. About 1 g of charcoal was added to this vessel and after some time its pressure is \( P' \) atm. It is observed that \( P'>P \). Choose the correct answer.
The oxygen carrying capacity of blood is reduced due to binding of haemoglobin with
From the following, identify the set that contains all meta directing groups:
In the contact process of manufacturing \(\text{H}_2\text{SO}_4\), the arsenic purifier used in the industrial plant contains:
Which of the following is correct statement?
Which of the following oxoacids of phosphorus has two P-H bonds?

The effects that aspirin can produce in the body are: 

 
 

Arrange the following in increasing order of their crystal field splitting energy: 

Which of the following does not evolve \( O_2 \) when made to react with water?
In the given sequence of reactions: \[ \text{P}_4 + \text{NaOH} + \text{H}_2\text{O} \;\longrightarrow\; \dots \;\longrightarrow\; X \;+\; 2\,\text{NaH}_2\text{PO}_2 \;\longrightarrow\; \dots \] The final product obtained with copper and \(\text{H}_2\text{SO}_4\) is:

The proper conditions of storing \( H_2O_2 \) are:

(1) Placing in wax-lined plastic bottle and kept in a dark
(2) Placing in a wax-lined plastic bottle and exposed to light
(3) Placing in a wax-lined plastic bottle containing traces of base
(4) Placing in metal vessel and exposed to light

The number of products formed by thermal decomposition of lithium nitrate, sodium nitrate respectively are:

Two statements are given below: 

I. Milk sugar is a disaccharide of \( \alpha \)-D-galactose and \( \beta \)-D-glucose. 
II. Sucrose is a disaccharide of \( \alpha \)-D-glucose and \( \beta \)-D-fructose. The correct answer is:

The technique used to purify an organic compound present in aqueous medium and which is less soluble in organic solvent is
A hydrocarbon containing C and H has 92.3\% of C. When 52 g of hydrocarbon is completely burnt in oxygen, \( x \) moles of water and \( y \) moles of CO\(_2\) were formed. The liberated water is sufficient to liberate one mole of H\(_2\) when reacted with sodium metal. What is the weight (in g) of O\(_2\) consumed?

 A few sols are given below:
As2S3 sol, starch sol, Al2O3 ·
xH2O sol, TiO2 sol, gold sol, congo red sol, blood, methylene blue sol, CdS sol
The number of positively charged sols in the above list is: