If N and S both are present in an organic compound then during Lassaigne’s test, both will change into
Options
(a) NaSCN (b) Na₂S and NaCN (c) Na₂S and NaCNO (d) Na₂SO₃ and […]
Two miscible liquids can be separated by
Options
(a) chromatography (b) vaccum distillation (c) steam distillation (d) seperating funnel
Correct Answer:
steam distillation
Explanation:
Chromatography: Chromatography is employed for identification, purification and separation of […]
n-Butane and isobutane are
Options
(a) positional isomers (b) chain isomers (c) functional isomers (d) metamers
Correct Answer:
chain isomers
Explanation:
No explanation available. Be the first to write the explanation for this […]
The isomerism represented by ethyl acetoacetate is
Options
(a) keto-enol isomerism (b) geometrical isomerism (c) enantiomerism (d) diastereoisomerism
Correct Answer:
keto-enol isomerism
Explanation:
No explanation available. Be the first to write the explanation […]
Dumas method is used for the estimation of
Options
(a) carbon (b) halogens (c) sulphur (d) nitrogen
Correct Answer:
nitrogen
Explanation:
It is the method of estimating nitrogen by heating a known mass […]
The compound that does not produce blue colour in Lassaigne’s test is
Options
(a) Urea (b) Hydrazine (c) Aniline (d) Glycine
Correct Answer:
Hydrazine
Explanation:
No explanation available. Be the first to write […]
A hydrocarbon contains 20% hydrogen and 80% carbon.The empirical formula is
Options
(a) CH₄ (b) CH₃ (c) CH₂ (d) CH
Correct Answer:
CH₃
Explanation:
Atomic ratio of 20% Hydrogen = 20 / 1 = […]
The hybridisation of C₂H₂ is
Options
(a) sp³ (b) sp (c) sp³d (d) sp²
Correct Answer:
sp
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Which of the following C-H bonds has lowest bond dissociation energy
Options
(a) tertiary(3⁰) C-H bond (b) primary(1⁰) C-H bond (c) secondary(2⁰) C-H bond (d) all of these
Correct Answer:
tertiary(3⁰) C-H bond
The number of isomers in C₄H₁₀O is
Options
(a) 5 (b) 3 (c) 7 (d) 4
Correct Answer:
7
Explanation:
No explanation available. Be the first to write the explanation for this question […]
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