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?
NH3
NO2
NO
HNO3
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 = 24×18,0002x96500
≈ 2.00g
The IUPAC nomenclature of the compound
H3C - CH(CH3) - CH(CH3) - CH2 - CH3
3,4- dimethylhexane
2,3- dimethyl pentane
2- ethyl hexane
2,3- dimethylhexane
Correct answer is B
No explanation has been provided for this answer.