Which is heaviest - Vidyadip

MCQ

Which is heaviest

A
$25\,gm$ of mercury
B
$2 \,moles$ of water
✓
$2\,moles$ of carbon dioxide
D
$4\,gm$ atoms of oxygen

✓

Answer

Correct option: C.

$2\,moles$ of carbon dioxide

c
Mass of $1\, mole$ of carbon dioxide $=44 \,g$

So, the mass of $2 \,moles$ of carbon dioxide $=88\, g$

Hence, $2\, moles$ of carbon dioxide is heaviest and the correct option is $C$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Assertion : Water in liquid state is more stable than ice at room temperature.
Reason :Water in liquid form has higher entropy than ice.

Which among the following is the strongest acid?

Which can show geometrical isomerism ?

The number of elements in the $5^{th}$ period of the periodic table are

The $K_a$ of monobasic acid $A, B$ and $C$ are $10^{-6}, 10^{-8}$ and $10^{-10}$ respectively. The concentrations of $A, B$ and $C$ are respectively. $0.1\,M$, $0.01\, M$ and $0.001\, M$. Which of the following is correct for $pOH$ of $A, B$ and $C$ ?

Which of the following statements are correct?

$(A)$ The electronic configuration of $Cr$ is $[ Ar ] 3 d ^{5}$ $4 s^{1}$.

$(B)$ The magnetic quantum number may have a negative value.

$(C)$ In the ground state of an atom, the orbitals are filled in order of their increasing energies.

$(D)$ The total number of nodes are given by $n-2$.

Choose the most appropriate answer from the options given below ....

If an atom has electronic configuration $1s^22s^22p^63s^23p^63d^34s^2$, it will be placed in :-

Which of the following complex is paramagnetic and inner orbital complex

A solution containing $0.85\, g$ of $ZnCl_2$ in $125 .0\,g$ of water freezes at $-0.23\,^oC$. The apparent degree of dissociation of the salt is ($K_f$ for water $= 1 .86\, K\,kg\,mol^{-1}$ , atomic mass : ............. $\%$ $Zn = 65 .3$ and $Cl = 35.5$)

By adding $20\,ml$ $0.1\,N\,HCl$ to $20\,ml$ $0.001\,N\,$ $KOH,$ the $ pH$ of the obtained solution will be