Which of the following species are restricted to an area?
Which of the following species are restricted to an area? Options (a) sibling species (b) endemic species (c) allopatric species…
7 years ago
BHU2004
Due to reference in biological role, Ca²⁺ ions are important in
Due to reference in biological role, Ca²⁺ ions are important in Options (a) Defence mechanism (b) Triggering the contraction of…
7 years ago
Which of the following is an azo dye
Which of the following is an azo dye Options (a) Orange-I (b) Malachite green (c) Indigo (d) Martius yellow Correct…
7 years ago
Fibre reactive dyes are the derivatives of
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:…
7 years ago
The common acid used in the manufacture of rayon and plastics is
The common acid used in the manufacture of rayon and plastics is Options (a) methanoic acid (b) ethanoic acid (c)…
7 years ago
The compound benzophenone(C₆H₅COC₆H₅) does not reacts with
The compound benzophenone(C₆H₅COC₆H₅) does not react with Options (a) NaHSO₃ (b) CH₃OH (c) HCN (d) NH₂OH Correct Answer: CH₃OHExplanation:No explanation…
7 years ago
Orthonitrophenol is steam volatile while para-isomer is not. This is because of
Orthonitrophenol is steam volatile while para-isomer is not. This is because of Options (a) more solubility of ortho form (b)…
7 years ago
The method of zone refining of metals is based on the principle of
The method of zone refining of metals is based on the principle of Options (a) greater mobility of the pure…
7 years ago
Silver is present in
Silver is present in Options (a) limonite (b) magnetite (c) galena (d) dolomite Correct Answer: galenaExplanation:No explanation available. Be the…
7 years ago
Which of the following is initiation codon?
Which of the following is initiation codon? Options (a) UAG (b) UGA (c) UAA (d) AUG Correct Answer: AUGExplanation:No explanation…
7 years ago