MCQ
Which is incorrect?
- AIn Mendeleev's periodic table third period elements are bridge elements
- BIn long form of periodic table total group $= 18$
- ✓In modern periodic table $III$ $B$ is $13^{th}$ group
- DAll are incorrect
✓
Answer
Correct option: C.
In modern periodic table $III$ $B$ is $13^{th}$ group
c
$III$ $B$ is $3^{rd}$ $gp$.,
$III$ $B$ is $3^{rd}$ $gp$.,
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
$n-$ heptane $\xrightarrow[{600\,{}^oC}]{{C{r_2}{O_3}/{V_2}{O_3}}}$ ?
→The frequency of a wave of light is $12 \times {10^{14}}{s^{ - 1}}.$ The wave number associated with this light is
→In which of the following substances, sulphur has the lowest oxidation number?
Catalytic dehydrogenation of $n-$haptane in presence of $C{r_2}{O_3}/A{l_2}{O_3}$ at $750\, K$ gives
→Which of the following has been arranged in order of increasing oxidation number of nitrogen ?
Which of the following compound can show geometrical isomerism ?
The internal energy of a compressed real gas, as compared to that of the normal gas at the same temperature, is :
Which compound shows cis-trans isomerism
Which statement about the following equilibrium is true ?
Incorrect statements among the following is/are