Question

Equal volumes of different substances:

• A. have equal weights
• B. have equal densities
• C. need not have equal weights
• D. none of the above

Answer 1

The correct option is C need not have equal weights

Equal volumes of different substances can have different weights as for example:

$200ml$ of $N{a}_{2}C{O}_3$ will have different weight than $200ml$ of $CaC{O}_3$

Therefore, equal volumes of different substances need not have equal weights.