MCQ
In the following, the element with the highest electropositivity is :
- Acopper
- ✓caesium
- Cbarium
- Dchromium
✓
Answer
Correct option: B.
caesium
Caesium $(Cs)$ is most electropositive in character, as it has the highest tendency to loose an electron from its outermost shell to achieve a stable fully filled configuration.
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
Which of the following is wrong representation
Which of the following is correct regarding buffer sol?
The type of hybridisation of boron in diborane is:
Match the conditions and the temperature for the 'fusion' process of $H_2O(s)$ at $1\, atm$ pressure
→| Condition | Temperature |
| $(1)$ Spontaneous | $(p)$ $273\,K$ |
| $(2)$ At equilibrium | $(q)$ $260\, K$ |
| $(3)$ Non-spontaneous | $(r)$ $280\, K$ |
$0.16\, g$ of dibasic acid required $25 \,ml$ of decinormal $NaOH$ solution for complete neutralisation. The molecular weight of the acid will be
→On the treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is
Match the columns and choose correct option
→| Column $-I$ | Column $-II$ |
| $(a)$ $4s$ | $(p)$ Circular orbit around nucleus |
| $(b)$ $4p$ | $(q)$ Non directional orbital |
| $(c)$ $1s$ | $(r)$ Angular momentum $=2h/\pi $ |
| $(d)$ $3d$ | $(s)$ Radial node is zero |
Assign $A, B, C, D$ from given type of reaction.
$NaI + Mn{O_2} + {H_2}S{O_4}\left( {conc.} \right) \to MnS{O_4} + {I_2} \uparrow $
→Which electron affinity process would liberate the most energy ?
In which of the following reactions, standard reaction entropy change $(\Delta S^o)$ is positive and standard Gibb's energy change $(\Delta G^o)$ decreases sharply with increasing temperature ?
→