Chemistry questions
29404 published questions with worked solutions.
- Given below are two statements: Statement I: Heating benzamide with bromine in an ethanolic solution of sodium hydroxide will...
- Given below are two statements: Statement I: The two cyclic forms of D-(+)-glucose (α and β anomers differing at C1 hydroxyl...
- A paper dipped in a dil. H₂SO₄ solution of 'X' upon treatment with SO₂ gas turns into green. The compound 'X' is:
- The total number of unpaired electrons present in the d³, d⁴ (low spin), d⁵ (high spin), d⁶ (high spin) and d⁷ (low spin)...
- RMgI when treated with ice cold water liberated a gas which occupied 1.4 dm³/g at STP. The gas produced is further reacted with...
- 20 g hemoglobin in a 1 L aqueous solution (A) at 300 K is separated from pure water by semi permeable membrane. At equilibrium...
- At 298 K, the molar conductivity of x% (w/w) MX solution (aqueous) is 123.5 S cm² mol⁻¹. The conductance of same solution is...
- Arrange the following atomic orbitals of multi electron atoms in order of increasing energy. A. n=3,l=2,m=+1 B. n=4,l=0,m=0 C....
- Identify the correct statements from the following: A. Heisenberg uncertainty principle is applicable to electrons. B. The size...
- What is the mole fraction of water in 10% by weight (w/w) of aqueous urea solution? [Given: Molar mass of H, O, C and N are 1,...
- Arrange the following resultant mixtures in increasing order of their pH values: A. 10 mL 0.2 M Ca(OH)₂ + 25 mL 0.1 M HCl B. 10...
- First order gas phase reaction A→B+C. pᵢ=initial pressure of gas A, pₜ=total pressure of the reaction mixture at time t....
- Given below are two statements: Statement I: The correct order of electronegativity of fluorine, oxygen and nitrogen is F>O>N....
- Correct statements from the following are: A. Nitrogen in oxidation states from +1 to +4 disproportionates in acid medium. B....
- The correct statements about metal carbonyls are: A. The metal-carbon bonds in metal carbonyls possess both σ and π-character. B....
- Given below are two statements: Statement I: Each electron in eg orbitals destabilizes the orbitals by +0.6Δₒ and each electron...
- Given below are two statements: Statement I: On the basis of inductive effect, the order of stability of alkyl carbanions is CH₃⁻...
- Benzyl isocyanide can be obtained from: A. PhCH₂Br + AgCN. B. PhCH₂NH₂ + CHCl₃/aq. NaOH. C. PhBr + AgCN. D. PhNH₂ + CHCl₃/aq....
- Consider compounds A, B and C: A = CH₃CH₂CH₂CH₂CH₂OH, B = CH₂=CHCH₂CH₂CH₃, C = HOCH₂CH₂CH(OH)CH₃. For the conversion of B from A,...
- Identify the incorrect statements. A. Benzylamine is a stronger base than aniline. B. p-Methoxyaniline can be synthesized by...