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Model Paper 6 — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 63 Marks
Question
The first (IE) and second (IER) ionization enthalpy: $\left( KJ mol ^{-1}\right)$ of three elements $A , B$ and C are given below:
 ABC
$IE _1$4035491142
$IE _2$264010602080
Identify the element which is likely to be
i. a non-metal
ii. an alkali metal
iii. an alkaline earth metal
✓

Answer

i. C is non-metal
ii. A is alkali metal
iii.B is alkaline earth metal

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