Question

B
B)
B
A ring contain 1.2g of diamond (allotropic form of C) calculate the number of carbon atoms in the rin
N10
NA
NA/2
1.2
Largest No of molecules are present in:
22g of CO2
64g of o
14g of Nz D
Noi
Calculate the volume occupied by 2.8g of (N2) gas at STP.
© 22.4 dm
2.24 dm
@ 4.48 dm
D 44.8
Theoretical yield is always:
less than practical yield B greator than actual yield
both are equal
D none of a
Balanced the equation by using suitable coefficient from the following set (Fe S2 + O2 → Fe2O3+S02)
4:11:2:8
B 11:10:2:8
6:5:3:7 0
none of th
tudy of chemistry is based on:
observation and conclusions B hypothesis and data © data and conclusions atoms and
Vhich of the following sample contain maximum number of atoms?
grams of H
28 grams of N2 © 22.4dm of CO2 at STP 1.5 moles
oltage applied in cathode ray experiment is:
5000 to 10,000 V B
5000 to 20,000 V
10,000 to 20,000 V
hen [H:] gas is enclosed in a discharged tube using low pressure; it emits:
D depends en pressure
yellow light
the discharged tube emission the cathode rays required:
D
green
low potential & low pressure low potential & high pressure high potential & high pressure
The Bohr's radius of 19 orbit of H-atom is:
(D) high potential & ld
0.529A
2.12A
nich one can't be explained by Bohr's theory:
4.76A
D
8.46A
Ве"
B
H
an atom exist in excited sate n=5, calculate maxi
He
(B)
blue light
red light
B В​

Answer 1

Answer:

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Answer 2

Answer:

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