In a neuron the concentration of intracellular potassium and extracellular
In a neuron the concentration of intracellular potassium and extracellular sodium is in a ratio of Options (a) 1:1 (b)…
5 years ago
AMU2003
The organelle of plant cell that does not contain functional DNA is
The organelle of plant cell that does not contain functional DNA is Options (a) peroxisome (b) nucleus (c) mitochondrian (d)…
5 years ago
How many pyrrole rings are there in porphyrin
How many pyrrole rings are there in porphyrin? Options (a) one (b) two (c) three (d) four Correct Answer: four…
5 years ago
Chitin is a polysaccharide found in the exoskeleton of
Chitin is a polysaccharide found in the exoskeleton of Options (a) prawn (b) insects (c) crabs (d) prawn,insects,crabs, all of…
5 years ago
For a spontaneous process, entropy always
For a spontaneous process, entropy always Options (a) increases (b) decreases (c) keeps changing (d) remains unchanged Correct Answer: increases…
5 years ago
At 298 K the enthalpy of formation of liquid water is -285.9 kJ/mol
At 298 K the enthalpy of formation of liquid water is -285.9 kJ/mol and that of steam -242.8 kJ/mol. The…
5 years ago
An open system
An open system Options (a) can neither lose nor gain energy (b) can lose or gain energy (c) can gain…
5 years ago
The heat of neutralization is the highest in the following case
The heat of neutralization is the highest in the following case Options (a) a strong acid and a weak base…
5 years ago
Enantiomers
Enantiomers Options (a) are not mirror images (b) are non-superimposable mirror images (c) are superimposable mirror images (d) constitute a…
7 years ago
Which of the following can act as an oxidising as well as reducing agent
Which of the following can act as an oxidising as well as reducing agent Options (a) Chlorine (b) Air (c)…
7 years ago