BITSAT SERIES Chemistry
The Lanthanoids
6 previous year questions.
Volume: 6 Ques
Yield: Medium
High-Yield Trend
1
2023 1
2020 1
2019 1
2016 1
2011 1
1998 Chapter Questions 6 MCQs
01
PYQ 1998
medium
chemistry ID: bitsat-1
Ozone can be easily detected by using:
1
2
3
4
02
PYQ 2011
medium
chemistry ID: bitsat-2
Which of the following pairs has the same size?
1
Fe²⁺, Ni²⁺
2
Zr⁴⁺, Ti⁴⁺
3
Zr⁴⁺, Hf⁴⁺
4
Zn²⁺, Hf⁴⁺
03
PYQ 2016
medium
chemistry ID: bitsat-2
Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect?
1
The ionic size of Ln(III) decreases in general with increasing atomic number
2
Ln(III) compounds are generally colourless
3
Ln(III) hydroxides are mainly basic in character
4
Because of the large size of Ln(III) ions, the bonding in its compounds is predominantly ionic in character
04
PYQ 2019
easy
chemistry ID: bitsat-2
The electronic configuration of (Atomic ), (Atomic ) and (Atomic ) are :
1
and
2
and
3
and
4
and
05
PYQ 2020
medium
chemistry ID: bitsat-2
Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect?
1
The ionic size of Ln(III) decreases in general with increasing atomic number
2
Ln(III) compounds are generally colourless
3
Ln(III) hydroxide are mainly basic in character
4
Because of the large size of the Ln(III) ions the bonding in its compounds is predominantly ionic in character
06
PYQ 2023
medium
chemistry ID: bitsat-2
The drug used as an antidepressant is:
1
Luminol
2
Tofranil
3
Mescaline
4
Sulphadiazine