KA2000

African sleeping sickness is caused by

African sleeping sickness is caused by Options (a) Giardia intestinalis (b) Trichomonas vaginalis (c) Trypanosoma gambiense (d) Leishmania donovani Correct…

A human female reaches menopause around the age of

A human female reaches menopause around the age of Options (a) 50 years (b) 55 years (c) 70 years (d)…

Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.

Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.The product gives pink colour with alkali. The product…

Methyl alcohol is industrially prepared by the action of

Methyl alcohol is industrially prepared by the action of Options (a) CH₃COCH₃ (b) CO + H₂ (c) CH₃COOH (d) C₂H₅OH…

How many unpaired electrons are present in ground state for Fe²⁺(Z=26)

How many unpaired electrons are present in ground state for Fe²⁺(Z=26) Options (a) 6 (b) 2 (c) 8 (d) 4…

On heating sodium metal in dry ammonia, the compound formed is

On heating sodium metal in dry ammonia, the compound formed is Options (a) sodium hydride (b) sodium azide (c) sodium…

Which of the following is the most evident source of evolution?

Which of the following is the most evident source of evolution? Options (a) morphology (b) fossils (c) vestigial organs (d)…

The abiogenisis occurred about how many billion years ago

The abiogenisis occurred about how many billion years ago Options (a) 2.5 billion (b) 1.2 billion (c) 3.5 billion (d)…