1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Amphoteric oxide among the following

A
$$\mathrm{CO}_2$$
B
$$\mathrm{Ag}_2 \mathrm{O}$$
C
$$\mathrm{SnO}_2$$
D
$$\mathrm{BeO}$$
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

The property of halogens which is not correctly matched is

A
$$\mathrm{F}>\mathrm{Cl}>\mathrm{Br}>\mathrm{I}$$ (Electronegativity)
B
I $$>\mathrm{Br}>\mathrm{Cl}>\mathrm{F}$$ (Density)
C
$$\mathrm{F}>\mathrm{Cl}>\mathrm{Br}>$$ I (Electron gain enthalpy)
D
$$\mathrm{F}>\mathrm{Cl}>\mathrm{Br}>$$ I (Ionisation enthalpy)
3
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Which noble gas has least tendency to form compounds?

A
Ne
B
Ar
C
Kr
D
He
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Elements $$X, Y$$ and $$Z$$ have atomic numbers 19, 37 and 55 respectively. Which of the following statements is true about them ?

A
$$Y$$ would have an ionisation potential between those of $$X$$ and $$Z$$.
B
$$Z$$ would have the highest ionisation potential.
C
$$Y$$ would have the highest ionisation potential.
D
Their ionisation potential would increase with increasing atomic number.
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