MCQ
Number of neutrons in heavy hydrogen atom is
- A$0$
- ✓$1$
- C$2$
- D$3$
✓
Answer
Correct option: B.
$1$
b
(b) Heavy hydrogen is $_1^2D$. Number of neutrons $= 1$
(b) Heavy hydrogen is $_1^2D$. Number of neutrons $= 1$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The newmann projection formula of most stable conformation of $3-$ hydroxypropanal is gauche. It is stable due to
→Assertion : Rates of nitration of benzene and hexadeuterobenzene are different.
Reason : $C-H$ bond is stronger than $C-D$ bond.
The aqueous solution of which one of the following is basic
Number of pure $p-$ orbitals in the given molecule hexa $-1, 3-$ dien $-5-$ yne
→The electronic configuration (outermost) of $M{n^{ + 2}}$ ion (atomic no. of $Mn = 25$) in its ground state is
→
Consider the following information about element $P$ and $Q$
→| Period number | Group number | |
| $Q$ | $2$ | $15$ |
| $P$ | $3$ | $2$ |
Then formula of the compound formed by $P$ and $Q$ element is
Consider the following elements.
Which of the following is/are true about $A \ ^{\prime}, B \ ^{\prime}, C \ ^{\prime}$ and $D \ ^{\prime}$ ?
$A.$ Order of atomic radii: $B \ ^{\prime}< A \ ^{\prime}< D \ ^{\prime}< C \ ^{\prime}$
$B.$ Order of metallic character : $B \ ^{\prime}< A \ ^{\prime}< D \ ^{\prime}< C \ ^{\prime}$
$C.$ Size of the element: $D \ ^{\prime}< C \ ^{\prime}< B \ ^{\prime}< A \ ^{\prime}$
$D.$ Order of ionic radii : $B ^{\prime+}< A ^{\prime+}< D ^{\prime+}< C ^{\prime+}$
Choose the correct answer from the options given below :
→Which of the following is/are true about $A \ ^{\prime}, B \ ^{\prime}, C \ ^{\prime}$ and $D \ ^{\prime}$ ?
$A.$ Order of atomic radii: $B \ ^{\prime}< A \ ^{\prime}< D \ ^{\prime}< C \ ^{\prime}$
$B.$ Order of metallic character : $B \ ^{\prime}< A \ ^{\prime}< D \ ^{\prime}< C \ ^{\prime}$
$C.$ Size of the element: $D \ ^{\prime}< C \ ^{\prime}< B \ ^{\prime}< A \ ^{\prime}$
$D.$ Order of ionic radii : $B ^{\prime+}< A ^{\prime+}< D ^{\prime+}< C ^{\prime+}$
Choose the correct answer from the options given below :
Oxidation number of $P$ in $K{H_2}P{O_2}$ is
→Which of the following reaction is not feasible