African sleeping sickness is caused by
Options
(a) Giardia intestinalis (b) Trichomonas vaginalis (c) Trypanosoma gambiense (d) Leishmania donovani
Correct Answer:
Trypanosoma gambiense
Explanation:
No explanation available. Be the first to write the […]
A human female reaches menopause around the age of
Options
(a) 50 years (b) 55 years (c) 70 years (d) 15 years
Correct Answer:
50 years
Explanation:
No explanation available. Be the first […]
Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.The product gives pink colour with alkali. The product is
Options
(a) salicylic acid (b) bakelite (c) phenolphthalein (d) fluorescein
Correct Answer: […]
Methyl alcohol is industrially prepared by the action of
Options
(a) CH₃COCH₃ (b) CO + H₂ (c) CH₃COOH (d) C₂H₅OH
Correct Answer:
CO + H₂
Explanation:
Methyl alcohol is prepared industrially from water […]
How many unpaired electrons are present in ground state for Fe²⁺(Z=26)
Options
(a) 6 (b) 2 (c) 8 (d) 4
Correct Answer:
4
Explanation:
No explanation available. Be the first to write the […]
On heating sodium metal in dry ammonia, the compound formed is
Options
(a) sodium hydride (b) sodium azide (c) sodium nitride (d) sodium amide
Correct Answer:
sodium amide
Explanation:
No explanation available. Be […]
Which of the following is the most evident source of evolution?
Options
(a) morphology (b) fossils (c) vestigial organs (d) embryos
Correct Answer:
fossils
Explanation:
No explanation available. Be the first to write […]
The abiogenisis occurred about how many billion years ago
Options
(a) 2.5 billion (b) 1.2 billion (c) 3.5 billion (d) 1.5 billion
Correct Answer:
3.5 billion
Explanation:
No explanation available. Be the first […]
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