1
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a first order reaction concentration of reactant decreases from 20 m mol to 10 m mol in 1.151 min. What is rate constant?

A
1.15 min$$^{-1}$$
B
3.0 min$$^{-1}$$
C
5.50 min$$^{-1}$$
D
0.60 min$$^{-1}$$
2
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among following compounds is a primary amine?

A
Ethyl methyl propyl amine
B
Hexamethylene diamine
C
Diphenyl amine
D
N, N-Dimethyl aniline
3
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among following properties of lanthanoids is NOT true?

A
These are good conductors of heat and electricity.
B
These are strongly paramagnetic.
C
These all are non-radioactive.
D
These have coordination number greater than 6 .
4
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

How many total voids are present in 1 mole of compound that forms hcp structure?

A
$$1.806\times10^{24}$$
B
$$1.204\times10^{24}$$
C
$$3.011\times10^{23}$$
D
$$6.022\times10^{23}$$
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