Choose the incorrect statement in the following
Choose the incorrect statement in the following
Options
(a) BeO is almost insoluble but BeSO₄ is solution in water (b) BeO is soluble but BaSO₄ is insoluble in water (c) Lil is more […]
KL2012
Which one of the following is not used as a filler in laundry soaps
Which one of the following is not used as a filler in laundry soaps
Options
(a) Sodium silicate (b) Glycerol (c) Sodium rosinate (d) Borax
Correct Answer:
Glycerol
Explanation:
No explanation available. Be […]
The organic halogen compound used as refrigerent in refrigerators
The organic halogen compound used as refrigerent in refrigerators and air-conditioners is
Options
(a) DDT (b) freon (c) BHC (d) CCl₄
Correct Answer:
freon
Explanation:
No explanation available. Be the first to write […]
Only sp and sp² hybrid orbitals are involved in the formation of
Only sp and sp² hybrid orbitals are involved in the formation of
Options
(a) CH₃ – CH = CH₂ (b) CH₃ – CH₃ (c) CH₃ – C ≡ CH (d) CH₂ = C […]
Aniline is separated from aniline-water mixture by
Aniline is separated from aniline-water mixture by
Options
(a) crystallisation (b) steam distillation (c) solvent extraction (d) differential extraction
Correct Answer:
differential extraction
Explanation:
No explanation available. Be the first to write the […]
Which one of the following transition metals ions shows magnetic moment of 5.92
Which one of the following transition metals ions shows magnetic moment of 5.92 BM
Options
(a) Mn²⁺ (b) Ti³⁺ (c) Cr³⁺ (d) Cu²⁺
Correct Answer:
Mn²⁺
Explanation:
Magnetic moment = √n(n+2) = 5.92. […]
Oxidation state of iron in [Fe(H₂O)₅NO]SO₄ is
Oxidation state of iron in [Fe(H₂O)₅NO]SO₄ is
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
1
Explanation:
No explanation available. Be the first to write the explanation for this question […]
In the laboratory, manganese(II) salt is oxidised to permanganate ion in aqueous
In the laboratory, manganese(II) salt is oxidised to permanganate ion in aqueous solution by
Options
(a) hydrogen peroxide (b) conc.nitric acid (c) peroxydisulphate (d) dichromate
Correct Answer:
peroxydisulphate
Explanation:
No explanation available. Be […]
The element with positive electron gain enthalpy is
The element with positive electron gain enthalpy is
Options
(a) neon (b) sodium (c) oxygen (d) fluorine
Correct Answer:
neon
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which one of the following is not a sulphide ore
Which one of the following is not a sulphide ore
Options
(a) Magnetic (b) Iron pyrites (c) Galena (d) Sphalerite
Correct Answer:
Galena
Explanation:
No explanation available. Be the first to write the […]