A deutrium is
A deutrium is
Options
(a) an electron with a positive charge (b) a nucleus having two protons (c) a nucleus containing a neutron and two proton (d) a nucleus containing a neutron and […]
Questions
Which of the following statement about water is wrong?
Which of the following statement about water is wrong?
Options
(a) It can act as a base (b) It can act as an acid (c) It can act both as an acid and […]
The percentage strength (in g litre⁻¹) of 10 mL of 20 vol.solution of H₂O₂ is
The percentage strength (in g litre⁻¹) of 10 mL of 20 vol.solution of H₂O₂ is
Options
(a) 220.4 (b) 110.2 (c) 150.5 (d) 60.7
Correct Answer:
60.7
Explanation:
No explanation available. Be the […]
What is the approximate percentage of H₂O₂ in a sample labelled as 10 V?
What is the approximate percentage of H₂O₂ in a sample labelled as 10 V?
Options
(a) 10% (b) 9% (c) 3% (d) 1%
Correct Answer:
3%
Explanation:
No explanation available. Be the first […]
A 6 volume sample of H₂O₂
A 6 volume sample of H₂O₂
Options
(a) will contain 6% V/V of H₂O₂ (b) will contain 6% W/V of H₂O₂ (c) would give 6 volumes of oxygen per unit volume of H₂O₂ […]
Which of the following pairs of substance on reaction will not evolve H₂ gas
Which of the following pairs of substance on reaction will not evolve H₂ gas
Options
(a) Copper and HCl (aqueous) (b) Iron and steam (c) Iron and H₂SO₄ (aqueous) (d) Sodium and ethyl […]
Predict the product of reaction of I₂ with H₂O₂ in basic medium
Predict the product of reaction of I₂ with H₂O₂ in basic medium
Options
(a) I⁻ (b) I₂O₃ (c) IO₃⁻ (d) I₃⁻
Correct Answer:
I⁻
Explanation:
No explanation available. Be the first to write […]
In solid ice, oxygen atom is surrounded
In solid ice, oxygen atom is surrounded
Options
(a) tetrahedrally by 4 hydrogen atoms (b) octahedrally by 2 oxygen and 4 hydrogen atoms (c) tetrahedrally 2 hydrogen and 2 oxygen atoms (d) octahedrally […]
The mixture of concentrated HCl and HNO₃ made in 3:1 ratio contains
The mixture of concentrated HCl and HNO₃ made in 3:1 ratio contains
Options
(a) ClO₂ (b) NOCl (c) NCl₃ (d) N₂O₄
Correct Answer:
NOCl
Explanation:
No explanation available. Be the first to write […]
The reagent commonly used to determine hardness of water titrimetrically is
The reagent commonly used to determine hardness of water titrimetrically is
Options
(a) oxalic acid (b) disodium salt of EDTA (c) sodium citrate (d) sodium thiosulphate
Correct Answer:
disodium salt of EDTA
Explanation: […]