Which of the following statements is not correct for a nucleophile
Options
(a) Ammonia is a nucleophile (b) Nucleophiles attack low e⁻ density sites (c) Nucleophiles are not electron seeking (d) Nucleophile is […]
In Duma’s method for estimation of nitrogen, 0.25g of an organic compound gave 40 mL of nitrogen collected at 300K temperature and 725 mm pressure.If the aqueous tension at 300 K is 25 mm, the […]
In the Kjeldahl’s method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 g of sample neutralized 10 mL of 1 M H₂SO₄. The percentage of nitrogen in the soil is […]
A compound with empirical formula CH₂O has a vapour density of 30.Its molecular formula is
Options
(a) C₃H₆O₃ (b) C₂H₄O₂ (c) C₂H₂O₂ (d) C₆H₁₂O₆
Correct Answer:
C₂H₄O₂
Explanation:
No explanation available. Be the […]
Two chemicals having same chemical formula but different arrangement of atoms are called
Options
(a) isotopes (b) isomers (c) polymers (d) epimers
Correct Answer:
isomers
Explanation:
No explanation available. Be the first to […]
If a compound, on analysis was found to contain C=18.5% ,H=1.55%, Cl=55.04% and O=24.81%, then its empirical formula is
Options
(a) C₂H₂OCl (b) CH₂ClO (c) CHClO (d) ClCH₂O
Correct Answer:
CHClO
Explanation:
No […]
The empirical formula of an acid is CH₂O₂ , the probable molecular formula of acid may be
Options
(a) CH₂O (b) CH₂O₂ (c) C₂H₄O₂ (d) C₃H₆O₄
Correct Answer:
CH₂O₂
Explanation:
The molecular formula […]
The IUPAC name of the compound having the formula CCl₃CH₂CHO is
Options
(a) 2,2,2-trichloropropanal (b) 1,1,1-trichloropropanal (c) 3,3,3-trichloropropanal (d) 1,2,1-dichloromethanal
Correct Answer:
3,3,3-trichloropropanal
Explanation:
No explanation available. Be the first to write the […]
Vapour density of a gas is 22. What is its molecular weight
Options
(a) 33 (b) 22 (c) 44 (d) 11
Correct Answer:
44
Explanation:
No explanation available. Be the first to write […]
The fractional distillation is used in
Options
(a) petroleum (b) crude oil (c) coal tar (d) all of these
Correct Answer:
all of these
Explanation:
Fractional distillation : In this process the distillate […]
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