MCQ
For which element would $XH_3$ be a stable species
- A$C$
- B$Si$
- ✓$P$
- D$S$
✓
Answer
Correct option: C.
$P$
c
$PH_3$ stable species.
$PH_3$ stable species.
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
A compound containing $x, y$ and $z$ atoms oxidation no of $x$ is $+3,\, y$ is $-5$ and $z$ is $+1$ then the possible formula of compound is
→In alkaline condition $KMn{O_4}$ reacts as $2KMn{O_4} + 2KOH \to 2{K_2}Mn{O_4} + {H_2}O + O$. The equivalent weight of $KMn{O_4}$ would be (Atomic mass of $K$ $= 39$, $Mn = 55$, $O = 16$)
→Pick out the molecule which has zero dipole moment
The boiling point of water is exceptionally high because
The electronegativity of aluminium is similar to
Ionization enthalpy of an atom is equal to
When a buffer solution of sodium acetate and acetic acid is diluted with water
Ortho-Nitrophenol is less soluble in water than $p-$ and $m-$Nitrophenols because :
→The heat of hydrogenation for $3$ -methylbutene and $2$ -pentene are $-30\, kcal/mol$ and $-28\,kcal/mol$ respectively. The heats of combustion of $2$ -methylbutane and pentane are - $784 \,kcal / mol$ and $-782 \,kcal/mol$ respectively. All the values are given under standard conditions. Taking into account that combustion of both alkanes give the same products, what is $\Delta H$ (in $kcal/mol$) for the following reaction under same conditions ?
→The ratio between the neutrons in $C$ and $Si$ with respect to atomic masses $12$ and $ 28$ is
→