Picric acid is
Options
(a) 2,4,6-trinitrotoluene (b) 2,4,6-tribromophenol (c) para-trinitrophenol (d) 2,4,6-trinitrophenol
Correct Answer:
2,4,6-trinitrophenol
Explanation:
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When CHCl₃ is boiled with NaOH, it gives
Options
(a) formic acid (b) trihydroxy methane (c) acetylene (d) sodium formate
Correct Answer:
sodium formate
Explanation:
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Which of the following paramagnetic
Options
(a) [Ni(CN)₄]²⁻ (b) [Ni(CO)₄] (c) [NiCl₄]²⁻ (d) [Co(NH₃)₆]³⁺
Correct Answer:
[NiCl₄]²⁻
Explanation:
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Which ion is detected by Nessler’s reagent
Options
(a) MnO₄ (b) PO₄³⁻ (c) NH₄⁺ (d) CrO₄²⁻
Correct Answer:
NH₄⁺
Explanation:
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MnO₂ and H₂O added to Nacl, the greenish-yellow gas liberate is
Options
(a) Cl₂ (b) NH₃ (c) N₂ (d) H₂
Correct Answer:
Cl₂
Explanation:
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The absorption of hydrogen by palladium is called
Options
(a) occlusion (b) hydration (c) hydrogenation (d) reduction
Correct Answer:
occlusion
Explanation:
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Specific conductance of 0.1 M sodium chloride solution is 1.06 ˣ 10⁻² ohm⁻¹ cm⁻¹. Its molar conductance in ohm⁻¹ cm² mol⁻¹ is
Options
(a) 1.06 ˣ 10² (b) 1.06 ˣ 10³ (c) 1.06 […]
When 25g of Na₂SO₄ is dissolved in 10³ kg of solution,its concentration will be
Options
(a) 2.5ppm (b) 25ppm (c) 250ppm (d) 100ppm
Correct Answer:
25ppm
Explanation:
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The basic component of the smog is
Options
(a) PAN (b) PBN (c) NO₂ (d) all of these
Correct Answer:
all of these
Explanation:
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Ethyl iodide when heated with sodium in dry ether gives pure
Options
(a) C₄H₁₀ (b) C₂H₆ (c) C₃H₈ (d) C₂H₅OH
Correct Answer:
C₄H₁₀
Explanation:
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