MCQ on D and F Block Elements: Chemistry is considered to be the most scoring subject in NEET JEE Exam. As it is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, master NEET/JEE Chemistry concepts. Chemistry demands the attention of students in understanding reactions and concrete basic understanding but once done it only gets easier from there. Mastering NCERT syllabus for NEET/JEE Chemistry should be topping your list of to-do for chemistry.

In this post we are providing you MCQ on D and F Block Elements, which will be beneficial for you in upcoming NEET, JEE, Medical and Engineering Exams.

MCQ on D and F Block Elements

Q1. When potassium ferrocyanide crystals are heated with concentrated sulphuric acid, the gas evolved is ______.
a) ammonia
b) carbon dioxide
c) carbon monoxide
d) sulphur dioxide

Q2. According to IUPAC nomenclature sodium nitroprusside dihydrate is named as ______.
a) Sodium nitroferrocyanide
b) Sodium nitroferricyanide
c) Sodium pentacyanonitrosylferrate (II)
d) Sodium pentacyanonitrosylferrate (III)

Q3. The number of unpaired electrons in gaseous species of Mn³⁺, Cr³⁺ and V³⁺ respectively are ______.
a) 4, 4 and 2
b) 4, 3 and 2
c) 3, 3 and 3
d) 3, 3 and 2

Q4. The pair that has similar atomic radii is ______.
a) Mo and W
b) Mn and Re
c) Sc and Ni
d) Ti and Hf

Q5. Zinc and mercury do not show variable valency like d-block elements because ______.
a) they are soft
b) their d-shells are complete
c) their d-shells are incomplete
d) they have only two electrons in the outermost subshell

Q6. In Fe(CO)₅, the Fe-C bond possesses ______.
a) pi character
b) sigma character
c) ionic character
d) both sigma and pi characters

Q7. Gun metal is an alloy of ______.
a) Cu and Al
b) Cu and Sn
c) Cu, Zn and Sn
d) Cu, Zn and Ni

Q8. Which of the following products are obtained when Na₂CO₃ is added to a solution of copper sulphate?
a) Copper carbonate and sodium sulphate
b) Copper hydroxide, sodium sulphate and CO₂
c) Copper carbonate, sodium sulphate and CO₂
d) Basic copper carbonate , sodium sulphate and CO₂

Q9. Silver nitrate produces a black stain on the skin due to ______.
a) its corrosive action
b) its reduction to metallic silver
c) being a strong reducing agent
d) formation of complex compound

Q10. Which one of the following elements shows the maximum number of different oxidation states in its compounds?
a) Am
b) Cd
c) Eu
d) La

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