The IUPAC nomenclature of the compound
H\(_3\)C - CH(CH\(_3\)) - CH(CH\(_3\)) - CH\(_2\) - CH\(_3\)
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.
C\(_3\)H\(_6\)O\(_3\)
C\(_6\)H\(_6\)O\(_3\)
C\(_6\)H\(_{12}\)O\(_6\)
CH\(_2\)O
Correct answer is C
C → 40/12 ≈ 3
H → 6.7/1 ≈ 6
O → 53.3/16 ≈ 3
dividing through with the lowest value, 3
C\(_1\)H\(_2\)O\(_1\)
[C\(_1\)H\(_2\)O\(_1\)]n = 180
[12 + 2 + 16]m = 180
30n = 180
n = 6
:C\(_6\)H\(_12\)O\(_6\)
Adding a suitable catalyst
Increasing the concentration of P
Increasing the temperature
Decreasing the temperature
Correct answer is C
No explanation has been provided for this answer.
Sulphur exists in six forms in the solid state. This property is known as
Isomerism
Allotropy
Isotopy
Isomorphism
Correct answer is B
No explanation has been provided for this answer.
25cm\(^3\)
10cm\(^3\)
20cm\(^3\)
50cm\(^3\)
Correct answer is D
Equation of reaction : 2NaOH + H\(_2\)SO\(_4\) → Na\(_2\)SO\(_4\) + 2H\(_2\)O
Concentration of a base, CB = 0.5M
Volume of acid, V\(_A\) = 10cm\(^3\)
Concentration of an acid, C\(_A\) = 1.25M
Volume of base, V\(_B\) = ?
Recall:
\(\frac{C_A V_A}{C_B V_B} = \frac{n_A}{n_B}\) ... (1)
N.B: From the equation,
\(\frac{n_A}{n_B} = \frac{1}{2}\)
From (1)
\(\frac{1.25 \times 10}{0.5 \times V_B} = \frac{1}{2}\)
\(\frac{12.5}{0.5V_B} = \frac{1}{2}\)
25 = 0.5V\(_B\)
VB = 50.0 cm\(^3\)