List of top Chemistry Questions

Which of the following oxyacids of sulphur contain S–O–S linkage?

Isochor is the graph plotted between

Which mineral among the following contains zinc?

Which among the following is an example of pseudo first order reaction?

Van’t Hoff factor for $K_3[Fe(CN)_6]$ is $3.333$. What is its percentage dissociation in water?

Which of the following has intramolecular hydrogen bonding?

Which among the following groups has lowest priority in assigning R,S convention?

Which of the following set of compounds does NOT demonstrate the law of multiple proportion?

Identify the mineral of iron from the following.

Which of the following is a Wolff–Kishner reduction?

Which cation from the following does NOT form a colourless compound? (Atomic number: Cu = 29, Ti = 22, Zn = 30, Sc = 21)

Which of the following properties is NOT a colligative property?

Which of the following salts of same concentration will have the same value of van't Hoff factor as that of \( K_4[Fe(CN)_6] \)?

What mass of water is formed when 1 mole of methane gas reacts with 2 moles of oxygen under identical conditions in their standard states?

Which among the following compounds does not exhibit resonance?

Gold crystallises in fcc structure with edge length 396 pm, find atomic radius of gold?

Which among the following gases is difficult to liquefy?

IUPAC name of \( \text{H}_2\text{N-CH}_2\text{C=CH}_2 \) is

The standard emf of Daniell cell is 1.10 volt. What is the maximum electrical work obtained from Daniell cell?

What is the bond order of \( \text{Be}_2 \) molecule?

What is the oxidation state of chlorine atom in perchloric acid?

How many lone pairs of electrons are present on each oxygen atom in any oxy acids of chlorine?

Which among the following on chlorination yields only one monochloroderivative?

Which among the following is a polynuclear hydride?

The rate law for the reaction is \( r = k[A]^m[B]^n \). If the concentration of \( A \) is doubled and that of \( B \) is halved, the new rate is \( r_2 \); then what is the ratio of \( r_2/r_1 \)?