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CSIR NET 2023 Weekend Booster Quiz | Chemical Science (4 June 2023)
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Question 1
The density of Li metal is 0.53 g cm-3 and the separation of (110) planes of metal is 350 pm. Molar mass of LI =6.941 g mol-1. Unit cell is
Question 2
The major product formed in the following reaction is:
Question 3
The approximate length (in μm) of the extended chain (contour length) of polypropylene of molar mass 420 kg mol–1 is close to:
Question 4
The IR stretching frequencies (cm-1) for the compound X are as follows:
3300- 3500 (S, br); 3000(m); 2225 (s); 1680 (s)
The correct assigned values for the absorption band are?
Question 5
The set among the following in which all members are magic numbers of nucleons is
Question 6
Name the element that can be used as an ionisation suppressor.
Question 7
A particle observed after the disintegration of 233Pa is:
Question 8
Number of signals observed in the 1H NMR spectrum of the following compounds P, Q, R, S, respectively are?
P. Q. R. S.
Question 9
The y-intercept obtained from the plot of viscosity of a series of polymer solution against the concentration is 0.05 . The proportionality constant K and exponent a for the polymer-solvent pair are 510-5 and 0.5, respectively. The molar mass of the polymer in g mol-1 is
Question 10
The major product formed in the following reaction is?
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Jun 4CSIR NET & SET