List of top Chemistry Questions

Which of the following complexes will exhibit maximum attraction to an applied magnetic field?
The molarity of NaCl solution is 3 M. Calculate the morality of the solution. (Given density of the solution = 1.25 g/mL)
Select the correct options:
Statement 1: Benzene sulphonyl chloride reacts with 1°, 2° and 3° amines.
Statement 2: All products of the reaction above are soluble in NaOH.

Which of the following is the IUPAC name for \(CH_3CH_2CH_2OH\)?

An ideal gas undergoes an isothermal process at 300 K. If the initial volume is 2 m\(^3\) and it doubles to 4 m\(^3\), what is the work done by the gas? (Take \(R = 8.31 \, \text{J/(mol.K)}\), and assume 1 mole of gas.)

What is the hybridization of the central atom in \(NH_3\)?

Calculate the empirical formula of a compound containing 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass.
Number of ambidentate nucleophiles among the following is:
CN-, SCN- NO2-, CH3COO-, C2042-, NH2-, SO42-
The concentration of sulphide ion in 0.1M HCl solution saturated with hydrogen sulphide is 1.0 × 10–19 M. If 10 mL of this is added to 5 mL of 0.04 M solution of the following: FeSO4, MnCl2, ZnCl2 and CdCl2. in which of these solutions precipitation will take place?

 The major product 'P' and 'Q' are


Identify 'P' and 'Q' in the following reaction

Which of the following statement(s) is/are correct about the given compound?

The compound(s) showing optical activity is/are

Which pair of ions among the following can be separated by precipitation method?
Which of the following is the correct structure of L- Glucose
If emf of hydrogen electrode at 25 ℃ is zero in pure water, then pressure of H2 in bar is?
For which of the following elements, only one oxidation state is possible?
Among the following, decreasing order of basic strength will be:
OH-, H-, HCOO-, CH3COO-, -OR
(I)     (II)    (III)         (IV)          (V)
Which of the following is the correct order of first ionization enthalpy?
Clemmensen Reduction \(\xrightarrow[Conc.HCL]{Zn-Hg}\) Product?
How many of the following compounds are sp3 hybridized
Given below are two statements :
Statement-1: Aldol condensation is caused by acidity of a hydrogens.
Statement-2: Cross aldol is not possible between Ph-CHO and CH3CHO
In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following will not give Lassaigne's test?
Among the following, species that have one unpaired electron:
Decreasing order of the field strength of the following ligands will be: CO, CN-, Cl-, H2O