Which of the following elements does not show allotropy ? - Vidyadip

MCQ

Which of the following elements does not show allotropy ?

✓
Nitrogen
B
Antimony
C
Bismuth
D
Arsenic

✓

Answer

Correct option: A.

Nitrogen

a

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

Chloroform when treated with aniline and alcoholic $KOH$ gives

An optically active compound $'X'$ having molecular formula $C_4H_8O_3$ it evolves $CO_2$ with $NaHCO_3.\,'x'$ on treatment with $LiAlH_4$ gives achiral compound then $'x'$ is

At $25\,^oC$ , the molar conductivity at infinite dilution for electrolytes $KOH, KCl$ and $BaCl_2$ are $248 \times 10^{-4}, 126 \times 10^{-4}$ and $280 \times 10^{ -4}\,Sm^2\,mol^{-1}$ respectively calculate $\Lambda _m^\infty $ for $Ba(OH)_2$ (in $Sm^2\, mol^{-1}$ )

What is the dissociation constant for $NH_4OH$ if at a given temperature its $0.1\,N$ solution has $pH = 11.27$ and the ionic product of water is $7.1 \times 10^{-15}$ (antilog $0.73 = 5.37$ )

For the redox reaction $Zn(s) + C{u^{2 + }}(0.1\,M) \to Z{n^{2 + }}(1\,M) + Cu(s)$ taking place in a cell, $E_{cell}^o$ is $1.10\,volt$. ${E_{cell}}$ for the cell will be ............ $\mathrm{V}$ $\left( {2.303\frac{{RT}}{F} = 0.0591} \right)$

$Ph - CH = CH - Ph\,\xrightarrow[{CC{l_4}}]{{C{l_2}}}X\xrightarrow{{2NaN{H_2}}}Y\xrightarrow[{BaS{O_4}}]{{{H_2} + Pd}}Z$

Product $Z$ is

The $IUPAC$ name of $C{H_2} = CH - C{H_2}Cl$ is

$\begin{array}{*{20}{c}}
{Ph - C{H_2} - CH - C{H_2} - C{H_3}}\\
{|\,\,\,\,\,\,\,}\\
{Br\,\,\,\,\,}
\end{array}$ $\xrightarrow{{NaN{H_2}}}\left( A \right)$

Total no. of elimination products are (includes stereoisomers)

The atomic number of an element is $35$ and mass number is $81. $ The number of electrons in the outer most shell is