The Lanthanoids are part of which block of elements in the periodic table?

A. p-block
B. s-block
C. d-block
D. f-block

Answer

Correct Answer: D. f-block

Detailed About MCQs

Lanthanoids form part of the series of chemical elements comprising the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through the lutetium. They are a part of the f-block of elements in the periodic table.

Which of the following group of elements contain the noble gases?

A. s-block
B. p-block
C. d-block
D. f-block

Answer

Correct Answer: B. p-block

Detailed About MCQs

The p-Block Elements comprise those belonging to Group 13 to 18 and these together with the s-Block Elements are called the Representative Elements or Main Group Elements. The 18th group i.e. the last group of the p-block elements is the noble gas group.

What is Rose metal?

A. It is an alloy of Nickel, Tin, and Zinc
B. It is an alloy of Bismuth, Copper, and Palladium
C. It is an alloy of Palladium, Tin, and Lead
D. It is an alloy of Bismuth, Tin, and Lead

Answer

Correct Answer: D. It is an alloy of Bismuth, Tin, and Lead

Detailed About MCQs

Rose metal is an alloy of Bismuth, Tin, and Lead. It’s a fusible alloy with a low melting point commonly used for soldering.