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RRB Group-D Model Paper 12 with answers for online practice

Question : 50

Total: 100

Which of the following metals exists in liquid state at room temperature?

Element	Chemical symbol/ Atomic number	Properties/Facts
Sodium	Na/11	Sodium is an alkali metal. It is a highly reactive metal and can react with atmospheric oxygen in an explosive manner (that is why it is stored in Kerosene). It is also an essential metal for living beings.
Sulphur	S/16	It is a yellowish non-metal. Rhombic sulphur and Monoclinic sulphur are the two important allotropes of sulphur. ;
Thorium	Th/90	It is a radioactive metal. It is used as nuclear fuel in nuclear reactors. Monazite is an ore of Thorium found in abundance in sand beaches of Kerala

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