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2 answers:
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Answer:
<span>A hexagon with nothing drawn inside it does not represent Benzene.
Explanation:
Below attached picture contains structures mentioned in given option.
Structure of Option-A is shown in Red Color.
</span>
Structure of Option-B is shown in Blue Color.
Structure of Option-C is shown in Green Color.
Structure of Option-D is shown in Orange Color.
Result:
Except Option-A, all structures represent Benzene. Option-A in fact shows the structure of Cyclohexane.
<span>A hexagon with nothing drawn inside it does not represent Benzene.
Explanation:
Below attached picture contains structures mentioned in given option.
Structure of Option-A is shown in Red Color.
</span>
Structure of Option-B is shown in Blue Color.
Structure of Option-C is shown in Green Color.
Structure of Option-D is shown in Orange Color.
Result:
Except Option-A, all structures represent Benzene. Option-A in fact shows the structure of Cyclohexane.
The specific gravity of a sample is the ratio of the density of the sample with respect to one standard sample. The standard sample used in specific gravity calculation is water whose density is 1 g/mL. The solution having specific gravity 1.30 is the density of the sample that is 1.30 g/mL. Thus the weight of the 30 mL sample is (30×1.30) = 39 g.
Now the mass of the 10 mL of water is 10 g as density of water is 10 g/mL. Thus after addition the total mass of the solution is (39 + 10) = 49g and the volume is (30 + 10) = 40 mL. Thus the density of the mixture will be g/mL. Thus the specific gravity of the mixed sample will be 1.225 g/mL.