1
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What are the formulae of the compounds formed when lanthanoids (Ln) react with nitrogen and halogen respectively?

A
$$\mathrm{LnN}$$ and $$\mathrm{LnX}_3$$
B
$$\mathrm{LnN}_3$$ and $$\mathrm{LnX}$$
C
$$(\mathrm{Ln})_2 \mathrm{N}_3$$ and $$\mathrm{LnX}_2$$
D
$$\mathrm{LnN}$$ and $$\mathrm{LnX}$$
2
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among following properties of lanthanoids is NOT true?

A
These are good conductors of heat and electricity.
B
These are strongly paramagnetic.
C
These all are non-radioactive.
D
These have coordination number greater than 6 .
3
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following elements has completely filled 4d-orbital?

A
Ag
B
Cd
C
Sc
D
Zr
4
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct statement about properties of interstitial compounds.

A
Melting point of these compounds is lower than parent metal.
B
Densities of these compounds are higher than parent metal.
C
Chemical properties of interstitial compounds are different than parent metal.
D
Metallic carbides are chemically inert.
MHT CET Subjects
EXAM MAP