List of top Chemistry Questions

Which of the following statements is false?
The statement that is not correct for periodic classification of elements is:
Specific conductance of 0.1 M HNO\(_3\) is \(6.3 \times 10^{-2} \, \text{ohm}^{-1} \, \text{cm}^{-1}\). The molar conductance of the solution is:
Using VSEPR theory, predict the species which has square pyramidal shape.
The reaction at cathode in the cells commonly used in clocks involves.
Total number of species from the following which can undergo disproportionation reaction _______.
$\text{H}_2\text{O}_2, \text{ClO}_3^-, \text{P}_4, \text{Cl}_2, \text{Ag}, \text{Cu}^{+1}, \text{F}_2, \text{NO}_2, \text{K}^+$
The Cu metal crystallises into fcc lattice with a unit cell edge length of 361 pm. The radius of Cu atom is:
Consider the following reactions
Chemical Reaction
The number of protons that do not involve in hydrogen bonding in the product B is______.
Identify the major product \((P)\) in the following reaction sequence: \[ (\text{CH}_3)_3\text{CBr} \xrightarrow[\Delta]{\text{Alcoholic KOH}} X \xrightarrow{\text{HBr}} P \]
An organic compound contains 37.5% C, 12.5% H and the rest oxygen. What is the empirical formula of the compound?
At 300 K, the vapour pressure of liquids A and B are 600 and 500 mm of Hg respectively. Two moles of A and three moles of B are mixed. The mole fractions of A and B in vapor state are respectively
The total number of ions produced from the compound \(\text{Cr}(\text{NH}_3)_6]\text{Cl}_3\) in aqueous solution is:
A transition metal 'M' among Sc, Ti, V , Cr, Mn and Fe has the highest second ionisation enthalpy. The spin only magnetic moment value of M+
ion is ______ BM (Near integer) (Given atomic number Sc : 21, Ti : 22, V : 23, Cr : 24, Mn : 25, Fe : 26)
What are the 4 types of hydrocarbons?

Find the time required to complete a reaction 90% if the reaction is completed 50% in 15 minutes.

Magnetic Moment of \( \text{Mn}^{2+} \) is:
IUPAC Name of Glyceraldehyde is:
IUPAC Name of Acetone is:
Which among the following is not an Analgesic?
Match List-I with List-II:
Glucocorticoids
Match List-I with List-II:
Lucas reagent
Match List-I with List-II:
Fibrous Proteins
In the Etard reaction, the final product is
Although chlorine is electron-withdrawing, it is ortho- and para-directing in electrophilic substitution because • (A) Chlorine withdraws electrons through inductive effect.
(B) Chlorine destabilizes the intermediate carbocation formed during electrophilic sub-stitution.
(C) Chlorine accepts electrons through resonance
(D) Chlorine releases electrons through resonance.
Choose the correct answer from the options given below:
Formaldehyde undergoes Cannizzaro reaction because
(A) It has alpha-hydrogen atom.
(B) It does not have alpha-hydrogen atom.
(C) It does not undergo self-oxidation and reduction on heating with concentrated alkali.
(D) It undergoes self-oxidation and reduction on heating with concentrated alkali.