Which of the following organism does not evolve oxygen in photosynthesis
Which of the following organism does not evolve oxygen in photosynthesis? Options (a) higher plants (b) Anabaena (c) Rhodospirillum (d)…
4 years ago
PB1997
In cockroach the ootheca is formed by the secretion of
In cockroach, the ootheca is formed by the secretion of Options (a) phallic gland (b) collaterial gland (c) mushroom gland…
4 years ago
The volume of 2.8g of carbon monoxide at 27⁰C and 0.821 atm pressure is
The volume of 2.8g of carbon monoxide at 27⁰C and 0.821 atm pressure is (R = 0.0821 lit. atm mol⁻¹…
6 years ago
The oxyacid of phosphorus, in which phosphorus has the lowest oxidation state, is
The oxyacid of phosphorus, in which phosphorus has the lowest oxidation state, is Options (a) metaphosphoric acid (b) pyrophosphoric acid…
6 years ago
Rhododendron is characteristic of vegetation of
Rhododendron is characteristic of vegetation of Options (a) tropical zone (b) gangetic plains (c) alpine zone (d) mangrove belt Correct…
6 years ago
In which process,fused sodium hydroxide is eletrolysed at a 330⁰C temperature
In which process,fused sodium hydroxide is eletrolysed at a 330⁰C temperature for extraction of sodium Options (a) Castner's process (b)…
6 years ago
Which of the following statements is correct regarding the drawbacks of raw rub
Which of the following statements is correct regarding the drawbacks of raw rubber Options (a) It is plastic in nature…
6 years ago
When the oxygen is inadequate during respiration the condition is called
When the oxygen is inadequate during respiration the condition is called Options (a) hypoxia (b) pleurisy (c) asphyxia (d) anoxia…
6 years ago
Isotopes used for providing semi conservative replication of DNA are
Isotopes used for providing semi conservative replication of DNA are Options (a) N¹⁴ and P³¹ (b) N¹⁴ and C¹⁴ (c)…
6 years ago
Mutations caused by mutagenic agents are termed as
Mutations caused by mutagenic agents are termed as Options (a) spontaneous mutations (b) induced mutations (c) chemical mutations (d) chromosomal…
6 years ago