Which of the following species are restricted to an area?
Options
(a) sibling species (b) endemic species (c) allopatric species (d) sympatric species
Correct Answer:
endemic species
Explanation:
No explanation available. Be the […]
Due to reference in biological role, Ca²⁺ ions are important in
Options
(a) Defence mechanism (b) Triggering the contraction of muscles (c) Formation of ATP (d) Generating right electrical potential across cell membrane
Which of the following is an azo dye
Options
(a) Orange-I (b) Malachite green (c) Indigo (d) Martius yellow
Correct Answer:
Orange-I
Explanation:
No explanation available. Be the first to write the explanation […]
Fibre reactive dyes are the derivatives of
Options
(a) anthraquinone (b) 2,4-dichloro-1,3,5-triazine (c) 2,4,6-triamino-1,3,5-triazine (d) naphthalene
Correct Answer:
2,4-dichloro-1,3,5-triazine
Explanation:
Fibre reactive dyes are derivatives of 2,4-dichloro-1,3,5-triazine.
The common acid used in the manufacture of rayon and plastics is
Options
(a) methanoic acid (b) ethanoic acid (c) propanoic acid (d) butanoic acid
Correct Answer:
ethanoic acid
Explanation:
No explanation available. […]
The compound benzophenone(C₆H₅COC₆H₅) does not react with
Options
(a) NaHSO₃ (b) CH₃OH (c) HCN (d) NH₂OH
Correct Answer:
CH₃OH
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Orthonitrophenol is steam volatile while para-isomer is not. This is because of
Options
(a) more solubility of ortho form (b) intramolecular hydrogen bonding in ortho nitrophenol (c) more lattice energy of ortho form […]
The method of zone refining of metals is based on the principle of
Options
(a) greater mobility of the pure metal than that of the impurity (b) higher melting point of the impurity […]
Silver is present in
Options
(a) limonite (b) magnetite (c) galena (d) dolomite
Correct Answer:
galena
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Which of the following is initiation codon?
Options
(a) UAG (b) UGA (c) UAA (d) AUG
Correct Answer:
AUG
Explanation:
No explanation available. Be the first to write the explanation for this question […]
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