Question 3 :
First ionization potential of alkaline earth metal is greater than alkali metals because___________________?
Question 4 :
The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:_______?
Question 5 :
Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?
Question 6 :
Which of the following will have highest value of electron affinity_________________?
Question 7 :
In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?
Question 12 :
Which one of the following is not produced in any of the steps of glycolysis?
Question 13 :
Which of the antibiotic is not used as a food preservative ?
Question 15 :
Selective media facilitate growth of only one kind of organism. Saboraud medium is used to selectively isolate
Question 16 :
If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?
Question 17 :
Aerobic catabolism of glucose yields how much energy (ATP synthesized) relative to glucose fermentation?
Question 19 :
Which of the following proteins first binds to TATA box during transcription?
Question 20 :
Oxidation ponds are shallow ponds, generally designed at the depth of
Question 24 :
A wire of length L is stretched by a length E when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is_________________
Question 25 :
The name of the photon for quantum of light was proposed by________________
Question 28 :
In hydrogen spectrum which one of the following series lies in the ultraviolet region
Question 30 :
When a force is applied at one end of an elastic wire it produces at strain in the wire. If y is the youngs modulus of the material of the wire the amount of energy stored per unit volume of the wire is given by_________________