1.7 litres
0.420 litres
0.588 litres
2.35 litres
Correct answer is C
No explanation has been provided for this answer.
Elements in the periodic table are arranged in the order of their
atomic numbers
metallic character
mass number
relative atomic mass
Correct answer is A
No explanation has been provided for this answer.
Which important nitrogen-containing compound is produced in Haber's process?
NH\(_3\)
NO\(_2\)
NO
HNO\(_3\)
Correct answer is A
No explanation has been provided for this answer.
1.12g
4.48g
1.80g
2.00g
Correct answer is D
Given Data:
Time (T) = 2hrs 30mins
where 2hrs =120mins
2hrs & 30mins = (120 + 30)mins = 150mins
150mins to Seconds = 150 x60 = 9,000s
Q = I x T
2 x 9,000 =18,000
where mg has valency of +2
So 2 x 96500 will discharge 24g of mg
and 18,000 will discharge xg of mg
2 x 96500 =24
18,000 =x
x = \(\frac{24 \times 18,000}{2 x 96500}\)
≈ 2.00g
Which of the following gases contains the least number of atoms at s.t.p?
1 mole of butane
4 moles of chlorine
3 moles of ozone
7 moles of argon
Correct answer is D
4 moles of chlorine gas = 4Cl\(_2\) = 8 atoms of chlorine
3 moles of ozone = 3O\(_3\) = 9 atoms of oxygen
1 mole of butane = C\(_4\)H\(_{10}\)
7 mole of argon = 7Ar = 7 atoms of argon
Argon is a monoatomic noble gas with the least number of atoms.