Identify the origin of sympathetic nerve fibres and the location of their ganglia
Options
(a) They arise from thoraco-lumber region of spinal cord and form ganglia just beside the vertebral column (b) They […]
The solubility of BaSO₄, in water, is 2.33 ˣ 10⁻³ g/L.Its solubility product will be (molecular weight of BaSO₄ = 233)
Options
(a) 1 ˣ 10⁻¹⁵ (b) 1 ˣ 10⁻¹⁰ (c) 1 ˣ […]
Aspirin is a acetylated product is
Options
(a) m-hydroxybenzoic acid (b) o-hydroxybenzoic acid (c) p-dihydroxybenzene (d) o-dihydroxybenzene
Correct Answer:
o-hydroxybenzoic acid
Explanation:
No explanation available. Be the first to write the explanation for […]
The reaction of primary amine with chloroform and ethanolic KOH, is called
Options
(a) Reimer-Tiemann reaction (b) Kolbe’s reaction (c) carbylamine reaction (d) none of these
Correct Answer:
carbylamine reaction
Explanation:
No explanation […]
A compound with empirical formula CH₂O has a vapour density of 30.Its molecular formula is
Options
(a) C₃H₆O₃ (b) C₂H₄O₂ (c) C₂H₂O₂ (d) C₆H₁₂O₆
Correct Answer:
C₂H₄O₂
Explanation:
No explanation available. Be the […]
The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively
Options
(a) 2,1 and -2 (b) 1,1 and 1 (c) -1, -1 and -1 (d) -2 , -3 and -1
Correct Answer: […]
Which of the following elements are analogous to the lanthanides
Options
(a) Carbides (b) Borides (c) Actinides (d) Hydrides
Correct Answer:
Actinides
Explanation:
No explanation available. Be the first to write the explanation […]
If a compound, on analysis was found to contain C=18.5% ,H=1.55%, Cl=55.04% and O=24.81%, then its empirical formula is
Options
(a) C₂H₂OCl (b) CH₂ClO (c) CHClO (d) ClCH₂O
Correct Answer:
CHClO
Explanation:
No […]
A certain current liberated 0.504 g of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in copper sulphate solution
Options
Which of the following is the most electropositive element
Options
(a) Phosphorous (b) Magnesium (c) Aluminium (d) Sulphur
Correct Answer:
Magnesium
Explanation:
No explanation available. Be the first to write the explanation for […]
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