Transition elements
Authored by Anshika Verma
Chemistry
12th Grade
NGSS covered
Used 207+ times
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Transition metals are ____
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is zinc not considered a transition metal?
Zinc is not a transition metal because it gains two 4s electrons to give a 2+ion with full d subshell levels.
Zinc is not a transition metal because it loses four 4s electrons to give a 4+ion with full d subshell levels.
Zinc is not a transition metal because it loses two 4s electrons to give a 2+ion with full d subshell levels.
Zinc is not a transition metal because it gains two 4d electrons to give a 2+ion with full d subshell levels.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The transition elements form a ________ of about 30 Metals in the________ of the Periodic Table.
Block & catalysts
Block & Middle
Catalysts & Coloured
High & Middle
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following d-block elements is not a transition element?
Iron
Zinc
Titanium
Chromium
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What is the highest oxidation state of manganese in it's compounds?
+8
+7
+6
+5
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best explains the action of a transition element as homogeneous catalyst?
It decreases the enthalpy of reaction
It exhibits a variable oxidation states
It supplies energy to increase the rate of effective collision
It supplies electrons to facilitate adsorption through the formation of temporary bonds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zn2+ ions form a white precipitate, Zn(OH)2, with an aqueous solution of ammonia. The white precipitate dissolves when a NH4Cl solution is added to it. Which statement explains the observation?
NH4+ ions decrease the concentration of OH- ions in the solution
NH4+ ions increase the solubility product of Zn(OH)2
NH3 molecule is a stronger ligand than OH- ions
A soluble ZnCl2 compound is formed
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