The factor that primarily increases the reactivity of alkali metals is ?

B. Increase in ionization energy

D. Increase in electronegativity

Everyday Science · Atoms, Elements & Compounds · page 9 of 10

Metal Elements MCQs with Answers

Includes 13 past paper MCQs (marked).

Timed quizzes, instant results, track your progress — free

Practice these MCQs in the app

All Everyday Science chapters

Metal Elements MCQs (81–90)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

Answers and one-liners are hidden. Tap an option to check that question, or show all.

81.
The factor that primarily increases the reactivity of alkali metals is ?
Correct Answer: C. Increase in atomic size
One-liner
The reactivity of alkali metals primarily increases due to increase in atomic size, which makes the outermost electron easier to lose.
82.
Which metal is used in streetlights to produce yellow light?
Correct Answer: B. Sodium
One-liner
Sodium is the metal used in streetlights to produce yellow light, due to its characteristic emission spectrum.
83.
Which of the following is not a member of the transition metals?
Correct Answer: C. The beryllium family
One-liner
The beryllium family (Group 2, alkaline earth metals) is not a member of the transition metals.
84.
The melting point of mercury is ?
Correct Answer: A. -39°C
One-liner
The melting point of mercury is -39°C, making it the only metal that is liquid at room temperature.
85.
White Chromium II metal complexes in open air change in colour to ?
Correct Answer: C. Green
One-liner
White Chromium(II) complexes turn green when exposed to open air due to oxidation to Chromium(III).
86.
Transition elements usually show _?
Correct Answer: B. Paramagnetism
One-liner
Transition elements usually show paramagnetism due to the presence of unpaired electrons in their d-orbitals.
87.
Which metal is used in electronics and motor windings due to its conductivity?
Correct Answer: C. Copper
One-liner
Copper is the metal widely used in electronics and motor windings due to its excellent electrical conductivity.
88.
What is the melting point of Tungsten?
Correct Answer: D. 3,000°C
One-liner
The melting point of Tungsten is 3,000°C, making it one of the highest among all metals.
89.
Past Paper MCQ
Which is the most abundant metal in the Earth's crust?
Correct Answer: B. Aluminium
One-liner
Aluminium is the most abundant metal in the Earth's crust, making up about 8.23% of its weight.
90.
Crystals in which lattice points are occupied by metal ions are?
Correct Answer: C. Metallic crystals
One-liner
Crystals in which lattice points are occupied by metal ions are called metallic crystals.

Previous chapter: Elements Next chapter: Non-metal Elements

Metal Elements MCQs with Answers

Metal Elements MCQs (81–90)

Subjects

Exams

Platform

Legal