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 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
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
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
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 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
Among the following compounds how many are amphoteric in nature Be(OH)2, BeO, Ba(OH)2, Sr(OH)2 Numerical Value Type
One mole of carbon atom weighs 12 g, the number of atoms in it is equal to, (Mass of carbon-12 is 1.9926 × 10–23 g) (1) 6.022 × 1023 (2) 1.2 × 1023 (3) 6.022 × 1022 (4) 12 × 1022
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.
Match the compounds of Xe in column I with the molecular structure in column II. Column I Column II (a) XeF2 (i) Square planar (b) XeF4 (ii) Linear (c) XeO3 (iii) Square pyramidal (d) XeOF4 (iv) Pyramidal (1) (a)-(ii) (b)-(i) (c)-(iv) (d)-(iii) (2) (a)-(ii)...
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