Human eye is sensitive to wavelength in the range of
Options
(a) 300-900 nanometer (b) 380-760 nanometer (c) 790-800 nanometer (d) 300-360 nanometer
Correct Answer:
380-760 nanometer
Explanation:
400 to 700 nm range […]
If an amide is treated with P₂O₅ the likely product is an
Options
(a) acid (b) alkyl cyanide (c) amine (d) acid anhydride
Correct Answer:
alkyl cyanide
Explanation:
No explanation available. Be the […]
Silver sulphide dissolves in a solution of sodium cyanide to form the complex
Options
(a) Na[Ag(CN)₂] (b) Na₃[Ag(CN)₄] (c) Na₅[Ag(CN)₆] (d) Na₂[Ag(CN)₂]
Correct Answer:
Na[Ag(CN)₂]
Explanation:
No explanation available. Be the first to […]
What is the magnetic moment for Mn²⁺ ion in low spin state
Options
(a) 5.90 BM (b) 8.90 BM (c) 2.8 BM (d) 1.73 BM
Correct Answer:
1.73 BM
Explanation:
For Mn²⁺ ion […]
Rate constants of some reaction are given below. predict which one indicates third order of reaction
Options
(a) k = 8.7 ˣ 10⁻³ mol⁻¹ Ls⁻¹ (b) k = 6.5 ˣ 10⁻⁴ mol L⁻¹ […]
Which of the following hydrogen bonds are strongest in vapour phase
Options
(a) HF — HF (b) HF — HCl (c) HCl — HCl (d) HF — HI
Correct Answer:
HF — HF
Diethyl ether is isomeric with
Options
(a) primary alcohol (b) secondary alcohol (c) tertiary alcohol (d) all of these
Correct Answer:
all of these
Explanation:
No explanation available. Be the first to write […]
When ethanol is subjected to dehydration in presence of H₂SO₄, the intermediate formed is a
Options
(a) carbonium ion (b) carbanion (c) radical (d) carbene
Correct Answer:
carbonium ion
Explanation:
No explanation available. […]
A primary alcohol, C₃H₈O (A) on heating with sulphuric acid undergo dehydration to gives an alkene, B.B when reacted with HCl gave C,which on treatment with aqueous KOH gives compound D, C₃H₈O. A and D […]
A zinc rod is place in 0.095 M solution of zinc sulphate at 298 K, the potential of the electrode at this temperature is [E⁰ zn = -0.76 volts]
Options
(a) – 0.76 […]
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