Which of the following could not be alkane?
C\(_4\)H\(_{10}\)
C\(_5\)H\(_{12}\)
C\(_7\)H\(_{14}\)
C\(_8\)H\(_{18}\)
Correct answer is C
No explanation has been provided for this answer.
The two ions responsible for hardness in water are
Ca\(^{2+}\) and / or Mg\(^{2+}\)
K\(^+\) and / or Mg\(^{2+}\)
Ca\(^{2+}\) and / or Li\(^+\)
Ca\(^{2+}\) and / or Na\(^+\)
Correct answer is A
No explanation has been provided for this answer.
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.