When ethanal is treated with Fehling’s solution. it gives a precipitate of
Options
(a) Cu₂O (b) Cu (c) Cu₃O (d) CuO
Correct Answer:
Cu₂O
Explanation:
No explanation available. Be the first to write […]
N₂ gas will not be evolved upon reaction of HNO₂ with which of the following amines
Options
(a) 1⁰ (b) 2⁰ (c) 3⁰ (d) Both (2⁰) and (3⁰)
Correct Answer:
Both (2⁰) and […]
In tetragonal crystal system, which of following is not true
Options
(a) All axial lengths and all axial angles are equal (b) All three axial lengths are equal (c) All three axial angles […]
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 […]
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 […]
How many moles of iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
3
Explanation:
Iodine is liberated […]
In which process,fused sodium hydroxide is eletrolysed for extraction of sodium
Options
(a) Castner’s process (b) Cyanide process (c) Down’s process (d) Both (b) and (C)
Correct Answer:
Castner’s process
Explanation:
No explanation […]
Bromine water reacts with SO₂ to form
Options
(a) HBr and S (b) H₂O and HBr (c) S and H₂O (d) H₂SO₄ and HBr
Correct Answer:
H₂SO₄ and HBr
Explanation:
No explanation available. […]
Which of the following carbonates is the most stable?
Options
(a) MgCO₃ (b) CaCO₃ (c) SrCO₃ (d) BaCO₃
Correct Answer:
BaCO₃
Explanation:
No explanation available. Be the first to write the explanation for […]
Primary,secondary and tertiary amines can be distinguished by
Options
(a) Schiff’s test (b) Fehling’s test (c) Tollent’s test (d) Hinsberg’s test
Correct Answer:
Hinsberg’s test
Explanation:
This reaction takes place in the presence […]
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