Arrange the following labelled hydrogens in decreasing order of acidity: (1) b > c > d > a (2) c > b > a > d (3) b > a > c > d (4) c > b > d > a
How many (i) sp2 hybridised carbon atoms and (ii) π bonds are present in the following compound? (1) 8, 5 (2) 7, 5 (3) 8, 6 (4) 7, 6
The number of chiral carbons present in the molecule given below is............... Numerical Value Type
The IUPAC name for the following compound is : (1) 2, 5-dimethyl-6-carboxy-hex-3-enal (2) 2, 5-dimethyl-5-carboxy-hex-3-enal (3) 6-formyl-2-methyl-hex-3-enoic (4) 2, 5-dimethyl-6-oxo-hex-3-enoic acid
In Carius method of estimation of halogen, 0.172 g of an organic compound showed presence of 0.08 g of bromine. Which of these is the correct structure of the compound ? (1) H3C–Br (2) H3C–CH2–Br (3) (4)
The correct statement regarding electrophile is (a) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile (b) electrophiles are generally neutral species and can form a bond by accepting ...
The IUPAC name of the compound is ________. (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c) 3-keto-2-methylhex-5-enal (d) 3-keto-2-methylhex-4-enal
The most suitable method of separation of 1 : 1 mixture of ortho and para-nitrophenols is (a) chromatography (b) crystallisation (c) steam distillation (d) sublimation.
The number of sigma ($\sigma$) and pi ($\pi$) bonds in pent-2-en-4-yne is (1) 10$\sigma$ bonds and 3$\pi$ bonds (2) 8$\sigma$ bonds and 5$\pi$ bonds (3) 11$\sigma$ bonds and 2$\pi$ bonds (4) 13$\sigma$ bonds and no $\pi$ bonds