Pyrethrin is got from
Pyrethrin is got from Options (a) Azadirachta indica (b) Chrysanthemum cinerariifolium (c) Urtica dioica (d) Tagetes erecta Correct Answer: Chrysanthemum…
7 years ago
BHU2002
Some blue green algae can be used as biofertilizer as they are
Some blue green algae can be used as biofertilizer as they are Options (a) Photosynthetic (b) Surrounded by mucilage (c)…
7 years ago
Which of the following compound react with NaHCO3 solution to give sodium salt
Which of the following compound react with NaHCO3 solution to give sodium salt and carbon dioxide Options (a) Phenol (b)…
7 years ago
Caprolactum is the monomer of
Caprolactum is the monomer of Options (a) nylon-6 (b) glyptal (c) dacron (d) melamine Correct Answer: nylon-6Explanation:No explanation available. Be…
7 years ago
When formaldehyde is polymerised in the presence of dilute H₂SO₄, the compound
When formaldehyde is polymerised in the presence of dilute H₂SO₄, the compound obtained is Options (a) paraldehyde (b) para-formaldehyde (c)…
7 years ago
Which of the following trivalent ion has the largest atomic radii
Which of the following trivalent ion has the largest atomic radii in the lanthanide series Options (a) La (b) Pm…
7 years ago
Concentrated sulphuric acid is always dilute by adding
Concentrated sulphuric acid is always dilute by adding Options (a) water to acid (b) alcohol to acid (c) acid to…
7 years ago
When 10 g of a non-volatile solute is dissolved in 100 g of benzene ,
When 10 g of a non-volatile solute is dissolved in 100 g of benzene , it raises boiling point by…
7 years ago
The ratio of radii of planets A and B is K₁ and ratio of accelerations
The ratio of radii of planets A and B is K₁ and ratio of accelerations due to gravity on them…
7 years ago
Which of the following cytoplasmic granules contain histamine?
Which of the following cytoplasmic granules contain histamine? Options (a) basophils (b) eosinophils (c) acidophils (d) neutrophils Correct Answer: basophilsExplanation:No…
7 years ago