Download App

The Solid State — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe Solid State1 Mark
MCQ
The empty space in $\text{hcp}$ and $\text{ccp}$ is about:
  • ✓
    $26\%$
  • B
    $30\%$
  • C
    $35\%$
  • D
    $40\%$
✓

Answer

Correct option: A.
$26\%$
The space occupied by spheres of equal size in three dimensions in both $\text{hcp}$ and $\text{ccp}$ arrangements is $74\%.$
The vacant space is $100 − 74 = 26\%.$

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

More "M.C.Q (1 Marks)" from The Solid State→The Solid State — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The rate constant of the reaction $A\rightarrow B$ is $0.6 \times 10^{-3}\, mol\, L^{-1}\, s^{-1}.$ If the concentration of $A$ is $5\, M,$ then concentration of $B$ after $20$ minutes is ......... $M.$
→
Molecular weight of urea is $60$. A solution of urea containing $6\,g$ urea in one litre is ....... $molar$
→
When $96500 $ coulomb of electricity is passed through a copper sulphate solution, the amount of copper deposited will be ............... $\mathrm{mol}$
→
Consider the following complex : $[Co(CO_3)(NH_3)_5 ]ClO_4$

Mark the correct option

Coordination no. $-$  Oxidation on. $-$  No. of $d-$electrons  $-$ Unpaired $d-$electrons

→
The reaction of the type $2{X_2} + S \to S{X_4}$ is shown by sulphur when $X$ is
→
Which of the following will react with water
→
Which complex is likely to show optical activity :
→
For the tetrahedral complex $[ MnBr _{-} 4]^{2-}$, the spin only magnetic moment value is $....$

[At. no. of $Mn = 25 ]$

→
Identify the products in the following reaction sequence :
$\text { 3,4,5-tribromoaniline } \xrightarrow[\text { (ii) } H_3 PO_2]{\text { (i) Dizotization }}$
→
For $CH_3Br + OH^-\rightarrow CH_3OH + Br^-$

the rate of reaction is given by the expression :

→