The temperature, at which heavy water has maximum density is
Options
(a) 1.16⁰C (b) 4.6⁰C (c) 4⁰C (d) 11.6⁰C
Correct Answer:
11.6⁰C
Explanation:
No explanation available. Be the first to write the explanation […]
When sodium is added to ethanol
Options
(a) no action occurs (b) NaOC₂H₅ and O₂ are formed (c) H₂ is formed (d) NaOC₂H₅ and H₂ are formed
Correct Answer:
NaOC₂H₅ and H₂ are […]
Which of the following is not correct for D₂O
Options
(a) Boiling point is higher than H₂O (b) D₂O reacts slowly than H₂O (c) Viscosity higher than H₂O at 25⁰ (d) Solubility of […]
Which one of the following statements is not correct for ortho and para hydrogen?
Options
(a) They have different boiling points (b) Ortho form is more stable than para form (c) They differ […]
The strength of H₂O₂ (in g/litre) in 11.2 volume solution of H₂O₂ is
Options
(a) 17 (b) 51 (c) 34 (d) 85
Correct Answer:
34
Explanation:
1 mL of solution contains 0.03035 g […]
Syngas is a mixture of
Options
(a) CO₂ + H₂ (b) CO + H₂ (c) CO + CO₂ (d) CO + N₂
Correct Answer:
CO + H₂
Explanation:
No explanation available. Be the […]
Permanent hardness of water is due to the presence of
Options
(a) bicarbonate of sodium and potassium (b) chlorides and sulphates of sodium and potassium (c) chlorides and sulphates of calcium and magnesium […]
Which among the following is kinetically inert towards water?
Options
(a) Na (b) Be (c) Ca (d) K
Correct Answer:
Be
Explanation:
No explanation available. Be the first to write the explanation for […]
Zeolite used to soften hardness of water is, hydrated
Options
(a) potassium aluminium borate (b) sodium aluminium silicate (c) zinc aluminium borate (d) zinc aluminium silicate
Correct Answer:
sodium aluminium silicate
Explanation:
The […]
Which one of the following statements is incorrect with regard to ortho and para-dihydrogen
Options
(a) They are nuclear spin isomers (b) The ortho isomer has zero nuclear spin whereas the para isomer […]
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