In which among the following pair both the elements are metalloid… - Vidyadip

MCQ

In which among the following pair both the elements are metalloids?

A
$Be, B$
✓
$Si, Ge$
C
$B, C$
D
$Sn, Pb$

✓

Answer

Correct option: B.

$Si, Ge$

b
$B < C < \mathop O\limits_{2{P^4}} < \mathop N\limits_{2{P^3}\,} $ (more stable)

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

Unit of equilibrium constant for the reversible reaction ${H_2} + {I_2}$ $\rightleftharpoons$ $2HI$ is

When $CrI_3$ oxidises to $Cr_2O_7^{-2}$ and $IO_4^-$ , equivalent mass of $CrI_3$ will be :-

Globular protein is present in -

$Be$ and $Al$ exhibit many properties which are similar, but the two elements differ in :

Match List $I$ with List $II$ with correct code

List $I$	List $II$
$1E_1\,\,1E_2\,\,1E_3$
$(A)$ $1510$ $-$ $-$	$(1)$ $H$
$(B)$ $495$ $6500$ $10200$	$(2)$ $Li$
$(C)$ $840$ $1630$ $13100$	$(3)$ $Be$
$(D)$ $600$ $2050$ $3100$	$(4)$ $B$

( $1E$ in $KJ\,mol^{-1}$ )

The total number of monohalogenated organic products in the following (including stereoisomers) reaction is.........

$\begin{array}{*{20}{c}} A \\ {{\text{(simplest optically active alkene)}}} \end{array}\,\xrightarrow[{(ii)\,{X_2}/\Delta }]{{(i)\,{H_2}/Ni/\Delta }}$

$EAN$ of the central metal in the complexes -$K_2[Ni(CN_4)], [Cu(NH_3)_4]SO_4$ and $K_2[PtCl_6]$ are respectively.

In which of the following system, doubling the volume of the container cause a shift to the right

In third row of periodic table the atomic radii from $Na$ to $Cl$

Which is correct