Assertion : $s-$Block elements do not occur free in nature.
Reason : $s-$Block elements are highly electropositive in nature.
Reason : $s-$Block elements are highly electropositive in nature.
- AIf both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- BIf both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- CIf the Assertion is correct but Reason is incorrect.
- DIf both the Assertion and Reason are incorrect.
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Similar Questions
Choose the correct order.
Difficult
View SolutionMatch Column-$I$ with Column-$II$ :
Column-$I$ Column-$II$ $(a)$ $NaOH$ $(p)$ Silvine $(b)$ $Na_2CO_3$ $(q)$ As cooling agent in nuclear reactor $(c)$ Liquid $Na$ $(r)$ Detergent soap $(d)$ Potassium $(s)$ In purification of Bauxite
| Column-$I$ | Column-$II$ |
| $(a)$ $NaOH$ | $(p)$ Silvine |
| $(b)$ $Na_2CO_3$ | $(q)$ As cooling agent in nuclear reactor |
| $(c)$ Liquid $Na$ | $(r)$ Detergent soap |
| $(d)$ Potassium | $(s)$ In purification of Bauxite |
Medium
View SolutionWhich of the following statements are false?
Easy
View SolutionCompare the alkali metals and alkaline earth metals with respect to $(i)$ ionization enthalpy,$(ii)$ basicity of oxides,and $(iii)$ solubility of hydroxides.
Medium
View SolutionWhich of the following orders are correct?
$(I)$ Thermal stability: $BeSO_4 < MgSO_4 < CaSO_4 < SrSO_4$
$(II)$ Basic nature: $ZnO > BeO > MgO > CaO$
$(III)$ Solubility in water: $LiOH > NaOH > KOH > RbOH$
$(IV)$ Melting point: $NaCl > KCl > RbCl > CsCl > LiCl$
$(I)$ Thermal stability: $BeSO_4 < MgSO_4 < CaSO_4 < SrSO_4$
$(II)$ Basic nature: $ZnO > BeO > MgO > CaO$
$(III)$ Solubility in water: $LiOH > NaOH > KOH > RbOH$
$(IV)$ Melting point: $NaCl > KCl > RbCl > CsCl > LiCl$
Difficult
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