MCQ
Element $X$ forms a chloride with the formula $\mathrm{XCl}_2$, which is a solid with a high melting point. $X$ would most likely be in the same group of the Periodic Table as :
- A$\ce{Na}$
- ✓$\ce{Mg}$
- C$\ce{Al}$
- D$\ce{Si}.$
✓
Answer
Correct option: B.
$\ce{Mg}$
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
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to :
Identify the product $(s)$ which will be formed by using the information provided about the reactants:
$\ce{Mg(s) + 2HCl} \rightarrow$
→$\ce{Mg(s) + 2HCl} \rightarrow$
In a synapse, chemical signal is transmitted from:
A sample of soil is mixed with water and allowed to settle. The clear supernatant solution turns the pH paper yellowish-orange. Which of the following would change the colour of this pH paper to greenish-blue?
Four students $\ce{A, B, C}$ andDtracedthe paths of incident ray and the emergent ray by fixing pins $P$ and $Q$ for incident ray and pins $R$ and $S$ for emergent ray for ray of lightpassing through a glass slab.The correct emergent ray was traced by the student :
→In these diagrams, the angle of refraction r has been correctly marked in which diagram?
$\mathrm{C}^{4+}$ does not exist but $\mathrm{Pb}^{4+}$ exists although both belong to the same group. This is because
→- Size of carbon is much smaller than $\ce{Pb}$.
- Large amount of energy is needed in case of carbon.
- Of inert pair effect.
- Nucleus cannot hold such a large number of electrons.
Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals $($except Mn and $Mg)?$
→The offsprings formed as a result of sexual reproduction exhibit more variations because:
When the leaves of a Mimosa pudica plant are touched with a finger, they fold up quickly. This is an example of: