In humans which among these is not a step in respiration
In humans, which among these is not a step in respiration Options (a) Pulmonary ventilation (b) Alveolar diffusion of O₂…
5 years ago
KL2012
Which of the following with respect to early experiments of photosynthesis
Which of the following with respect to early experiments of photosynthesis is wrongly matched? Options (a) Joseph Priestley- Showed that…
5 years ago
One mineral activates the enzyme catalase and the other is a constituent of
One mineral activates the enzyme catalase and the other is a constituent of the ring structure of chlorophyll. These minerals…
5 years ago
The strength of H₂O₂ (in g/litre) in 11.2 volume solution of H₂O₂ is
The strength of H₂O₂ (in g/litre) in 11.2 volume solution of H₂O₂ is Options (a) 17 (b) 51 (c) 34…
7 years ago
Syngas is a mixture of
Syngas is a mixture of Options (a) CO₂ + H₂ (b) CO + H₂ (c) CO + CO₂ (d) CO…
7 years ago
Which one of the following is not a sulphide ore
Which one of the following is not a sulphide ore Options (a) Magnetic (b) Iron pyrites (c) Galena (d) Sphalerite…
7 years ago
Secondary amines could be prepared by
Secondary amines could be prepared by Options (a) reduction of nitriles (b) Hoffmann bromamide reaction (c) reduction of amides (d)…
7 years ago
The products formed when diborane is hydrolysed are
The products formed when diborane is hydrolysed are Options (a) B₂O₃ and H₃BO₃ (b) B₂O₃ only (c) H₃ BO₃ and…
7 years ago
Germanium of very high purity is obtained by
Germanium of very high purity is obtained by Options (a) liquation (b) vapour phase refining (c) distilation (d) zone refining…
7 years ago
The element that does not show catenation among the following p-block elements is
The element that does not show catenation among the following p-block elements is Options (a) carbon (b) silicon (c) germanium…
7 years ago