For distinguishing phenol and acetic acid we required to react (treat) them with
Options
(a) Na₂CO₃ (b) NaOH (c) HCl (d) NaHCO₃
Correct Answer:
NaHCO₃
Explanation:
Acetic acid on treatment with NaHCO₃ evolves […]
Which of the following alcohol is least soluble in water
Options
(a) CH₃OH (b) C₄H₉OH (c) C₃H₇OH (d) C₁₀H₂₁OH
Correct Answer:
C₁₀H₂₁OH
Explanation:
The solubility of an alcohol decreases with the increase of […]
Glycerol on treated with oxalic acid gives
Options
(a) acrolein (b) glycerose (c) formic acid and allyl alcohol (d) allyl alcohol and glycol
Correct Answer:
formic acid and allyl alcohol
Explanation:
At 110⁰C glycerol […]
Which of the following statements is correct
Options
(a) Phenol is more acidic than carbonic acid (b) Phenol is more acidic than ethyl alcohol (c) Phenol is less acidic than ethyl alcohol (d) […]
Ethyl alcohol gives ethyl chloride with the help of
Options
(a) Cl₂ (b) KCl (c) SOCl₂ (d) NaCl
Correct Answer:
SOCl₂
Explanation:
C₂H₅OH + SOCl₂ → C₂H₅Cl + HCl↑+ SO₂↑. Added advantage of […]
Two tuning forks are sounded together and produce 2 beats per second. The frequency of one of them is 288 Hz. The other is loaded with some wax and now they produce four beats per […]
When a sound wave of wavelength λ is propagating in a medium, the maximum velocity of the particle is equal to the wave velocity. The amplitude of wave is
Options
(a) λ (b) λ/2 […]
A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz. The apparent frequency of siren after passing it will be
Options
(a) 520 Hz (b) 485 Hz (c) […]
Two points are located at a distance of 10 m and 15 m from the source of oscillation. The period of oscillation is 0.05 sec and the velocity of the wave is 300m/sec. What is […]
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