NaHCO₃ is prepared by
NaHCO₃ is prepared by
Options
(a) Dow process (b) Solvay process (c) Bosch process (d) none of these
Correct Answer:
Solvay process
Explanation:
No explanation available. Be the first to write the explanation […]
Chemistry
MnO₄²⁻ (1 mole) in neutral aqueous medium is disproportionated to
MnO₄²⁻ (1 mole) in neutral aqueous medium is disproportionated to
Options
(a) 2/3 mole of MnO₄⁻ and 1/3 mole of MnO₂ (b) 1/3 mole of MnO₄⁻ and 2/3 mole of MnO₂ (c) 1/3 […]
How many moles of iodine are liberated when 1 mole of potassium dichromate
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 […]
pH value of a solution, whose hydronium ion concentration is 6.2 x 10⁻⁹ mol/L is
pH value of a solution, whose hydronium ion concentration is 6.2 x 10⁻⁹ mol/L is
Options
(a) 7.75 (b) 7.21 (c) 8.21 (d) 6.21
Correct Answer:
8.21
Explanation:
No explanation available. Be the […]
If the hydrogen ion concentration of an acid decreases 10 times, its pH value
If the hydrogen ion concentration of an acid decreases 10 times, its pH value
Options
(a) remains unchanged (b) increases by one (c) increases by 10 (d) decreases by one
Correct Answer:
increases […]
If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres
If 1 mole of an ideal gas expands isothermally at 37⁰C from 15 litres to 25 litres ,the maximum work obtained is
Options
(a) 12.87 J (b) 6.43 J (c) 8.57 J (d) […]
First law of thermodynamics is represented by the equation
First law of thermodynamics is represented by the equation
Options
(a) W = Q + ΔE (b) ΔE = Q + W (c) Q = W – ΔE (d) ΔE = Q – […]
Identify the molecule that has zero dipole moment
Identify the molecule that has zero dipole moment
Options
(a) CH₃Cl (b) CHCl₃ (c) CH₂Cl₂ (d) CCl₄
Correct Answer:
CCl₄
Explanation:
No explanation available. Be the first to write the explanation for this […]
The molecular of CO₂ has angle 180°.It can be explained on the basis of
The molecular of CO₂ has angle 180°.It can be explained on the basis of
Options
(a) sp³ hybridisation (b) sp² hybridisation (c) sp hybridisation (d) d²sp³ hybridisation
Correct Answer:
sp hybridisation
Explanation:
No […]
Which of the following gas is called rare gas
Which of the following gas is called rare gas
Options
(a) Krypton (b) Neon (c) Argon (d) All of these
Correct Answer:
All of these
Explanation:
No explanation available. Be the first to […]