List of top Chemistry Questions

The empirical formula of an organic compound containing carbon and hydrogen is $CH_2$. The mass of one litre of this organic gas is exactly equal to that of one litre of $N_2$. Therefore, the molecular formula of the organic gas is
The violet colour in the Lassaigne's test of sulphur is due to
Vinyl carbinol is
What are the hybridization and shapes of the following molecules? (i) $CH_{3} F$ (ii) $HC \equiv N$
When an organic compound conta ining phosphorus is fused with fusion mixture, it gives
Which among the following is the correct IUPAC name of isoamylene ?
Which of the following alkcnes is the most stable ?
Which of the following carbanion expected to be most stable?
Which of the following does not show resonance effect?
Which one of the following free radicals is the most stable?
Which of these carbocations have maximum hyperconjugative structures?
Which of the following statements is correct ?
Which of the following species is paramagnetic in nature ?
Which of the following species is an electrophile ?
Which of the following is the correct order of acidity of carboxylic acids? $(i) Cl_{3}CCOOH >\, Cl_{2}CHCOOH >\, ClCH_{2}COOH$ $(ii) CH_{3}CH_{2}COOH >\, (CH_{3})_{2} CHCOOH >\, (CH_{3})_{3} CCOOH$ (iii) $F_{2}CHCOOH >\, FCH_{2}COOH > \,ClCH_{2}COOH$
Which of the following is the correct $IUPAC$ name?
Which of the following is/are alicyclic heterocyclic compound ?
Which of the following is an example of elimination reaction ?
Which of the following intermediates contains three pairs of electrons in its valence shell?
Which of the following has + R (resonance) effect ?
Which of the following has maximum acidic strength ?
Which of the following group has the maximum hyperconjugation effect ?
Lassaigne?? test for the detection of nitrogen fails in
Degree of dissociation of an acid HCl is 95% 0.192 g of the acid is present in 0.5 L of solution.The pH of the solution is
Equilibrium constant, K changes with temperature. At 300 K, equilibrium constant is 25 and at 400 K it is 10. Hence, backward reaction will have energy of activation