What products are formed when the following compound is treated with Br₂ in the presence of FeBr₃
Options
(a) (b) (c) (d)
Correct Answer: Explanation:
No explanation available. Be the first to […]
What is the maximum number of orbitals that can be identified with the following quantum numbers ? n =3,l =1,ml =0
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
1
Explanation: […]
Using the Gibb’s energy change,ΔG⁰ = +63.3 kJ, for the following reaction ,Ag₂CO₃(s) ⇌ 2Ag⁺(aq) + CO₃²⁻(aq) the Ksp of Ag₂CO₃(s) in water at 25⁰C is
Options
(a) 3.2 ˣ 10⁻²⁶ (b) 8.0 […]
The weight of silver (at.wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O₂ at STP will be
Options
(a) 5.4 g (b) 10.8 g (c) 54.0 g […]
The reaction of aqueous KMnO₄ with H₂O₂ in acidic conditions gives
Options
(a) Mn⁴⁺ and O₂ (b) Mn²⁺ and O₂ (c) Mn²⁺ and O₃ (d) Mn⁴⁺ and MnO₂
Correct Answer:
Mn²⁺ and O₂
Explanation: […]
The pair of compounds that can exist together is
Options
(a) FeCl₃,SnCl₂ (b) HgCl₂,SnCl₂ (c) FeCl₂,SnCl₂ (d) FeCl₃,KI
Correct Answer:
FeCl₂,SnCl₂
Explanation:
No explanation available. Be the first to write the explanation for […]
Reason of lanthanoid contraction is
Options
(a) negligible screening effect of ‘f’-orbitals (b) increasing nuclear charge (c) decreasing nuclear charge (d) decreasing screening effect
Correct Answer:
negligible screening effect of ‘f’-orbitals
Explanation:
No […]
Of the following 0.10 m aqueous solution which one will exhibit the largest freezing point depression
Options
(a) KCl (b) C₆H₁₂O₆ (c) Al₂(SO₄)₃ (d) K₂SO₄
Correct Answer:
Al₂(SO₄)₃
Explanation:
No explanation available. Be […]
Magnetic moment 2.83 BM is given by which of the following ions
Options
(a) Ti³⁺ (b) Ni²⁺ (c) Cr³⁺ (d) Mn²⁺
Correct Answer:
Ni²⁺
Explanation:
Magnetic moment µ=√n(n+2) 2.83=√n(n+2) On solving n=2 Ni²⁺ […]
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 […]
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