If 0.2 gram of an organic compound containing carbon, hydrogen and oxygen on combustion , yielded 0.147 gram carbon dioxide and 0.12 gram water, what will be the content of oxygen in substance
Options […]
In Lassaigne’s test red colour precipitate is obtained which is due to formation of
Options
(a) FeCNS (b) Fe(CNS)₂ (c) NaCNS (d) Fe(CNS)₃
Correct Answer:
Fe(CNS)₃
Explanation:
No explanation available. Be the first […]
The hybridisation of carbon in diamond ,graphite and acetylene is in the order of
Options
(a) sp sp² sp³ (b) sp³sp² sp (c) sp³sp sp² (d) sp² sp³ sp
Correct Answer:
sp³ sp² […]
In an organic compound phosphorus is estimated as
Options
(a) Mg₂P₂O₇ (b) Mg₃(PO₄)₂ (c) H₃PO₄ (d) P₂O₅
Correct Answer:
Mg₂P₂O₇
Explanation:
A pre-weighed amount of organic compound is heated with concentrated nitric acid […]
Number of isomers of C₄H₁₀ is
Options
(a) 4 (b) isomerism not exist (c) 3 (d) 2
Correct Answer:
2
Explanation:
No explanation available. Be the first to write the explanation for this […]
Violet coloured complex obtained in the detection of Sulphur is
Options
(a) Na₂[Fe(NO)(CN)₅] (b) Na₃[Fe(ONSNa)(CN)₅] (c) Na₄[Fe(CN)₅NOS] (d) both (Na₃[Fe(ONSNa)(CN)₅)] and (Na₄[Fe(CN)₅NOS])
Correct Answer:
both (Na₃[Fe(ONSNa)(CN)₅]) and (Na₄[Fe(CN)₅NOS])
Explanation:
No explanation available. Be […]
Which of the following is the IUPAC name of the compound
Options
(a) 4-methyle-2-hexanol (b) 4-methyl-3-hexanol (c) 2-methyl-3-hexanol (d) 3-methyl-4-hexanol
Correct Answer:
4-methyle-2-hexanol
Explanation:
No explanation available. Be the first to write the […]
How will you separate a solution (miscible) of benzene + CHCl₃
Options
(a) Sublimation (b) Filtration (c) distilation (d) Crystallisation
Correct Answer:
distilation
Explanation:
Distillation particularly fractional distillation because the boiling point of […]
Which of the following is used as refrigerant
Options
(a) SiC (b) CO₂ (c) CF₂Cl₂ (d) CHCl₃
Correct Answer:
CF₂Cl₂
Explanation:
No explanation available. Be the first to write the explanation for this […]
Gasoline is a mixture of hydrocarbons containing
Options
(a) C₃ to C₅ carbon atoms (b) C₇ anf C₉ carbons atoms (c) C₁₂ to C₁₆ carbons atoms (d) C₁₄ to C₁₈ carbon atoms
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