List of top Chemistry Questions

Which of the following is a cationic detergent?
What is the oxidation number of As in H\(_3\)AsO\(_3\)?
Which of the following is used as an antiseptic in soap?
Pumice stone is an example of
When alkyl halide is boiled with large excess of alcoholic ammonia it forms
Which among the following compounds has the highest boiling point?
Identify compound ‘B’ in following series of reactions?
Which of the following is NOT an antiseptic?
Identify the catalyst X used in the following reaction:
CH\(_3\)CH\(_2\)Br + 2[H] \(\xrightarrow{X}\) CH\(_3\)CH\(_3\) + HBr
Which among the following is a product of hydrolysis of one mole raffinose?
Which metal from the following has the highest tendency to undergo oxidation?
What is the bond order of B\(_2\) molecule?
The reaction \( 2R - Cl + CoF_2 \rightarrow 2R - F + CoCl_2 \) is an example of .......
At what new pressure will 100 mL of a gas at pressure 720 mm occupy volume of 84 mL, keeping temperature constant?
Which of the following oxoacid of sulphur has -O-O- linkage?
Match the following
OxideNature
(a)CO(ii)Neutral
(b)BaO(i)Basic
(c)\(Al_{2}O_{3}\)(iv)Amphoteric
(d)\(Cl_{2}O_{7}\)(iii)Acidic

Which of the following is correct option ?
Which of the following elements is refined by zone refining?

In the following reaction: Phenol + acetone xrightarrowH⁺ X The product [X] is: 





 

The most likely acid–catalysed aldol condensation products of each of the two aldehydes I and II will respectively be: 





 

Give the possible structure of X in the following reaction: C₆H₆ + D₂SO₄ xrightarrowD₂O X 

In the reaction: P + Q longrightarrow ?R + S The time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with time as shown in the figure. The overall order of the reaction is: 

A compound of Xe and F is found to have 53.5% of Xe. What is the oxidation number of Xe in this compound?
The non-stoichiometric compound Fe₀.94O is formed when x% of Fe²+ ions are replaced by as many (2)/(3)Fe³+ ions. The value of x is:
The equilibrium constant for the disproportionation reaction 2Cu⁺(aq) rightleftharpoons Cu(s) + Cu²+(aq) at 25^∘C (EᶜircCᵤ⁺/Cᵤ=0.52V, EᶜircCᵤ²+/Cᵤ⁺=0.16V) is:
Al (at. wt. 27) crystallizes in the cubic system with a cell edge of 4.05AA. Its density is 2.7g cm⁻3. Determine the atom unit cell type and calculate the radius of the Al atom.