Which of the following is/are example/s of Non-metal/s?
a) carbon
b) sulphur
c) chlorine
d) all of these
Which of the following elemental metal that is liquid at room temperature?
a) graphite
b) mercury
c) sodium
d) bromine
Which of the following elemental non-metal that is liquid at room temperature?
a) graphite
b) mercury
c) sodium
d) bromine
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The correct answer is d) bromine. Explanation: Graphite is a solid form of carbon (a non-metal) at room temperature. Mercury is a metal that is liquid at room temperature. Sodium is a metal that is solid at room temperature. Bromine is the only elemental non-metal that exists as a liquid at room temperature. It is a reddish-brown liquid with a pungent odor. |
Which of the following elemental Non-metal that can conduct electricity?
a) graphite
b) sulphur
c) boron
d) bromine
Which of the following is used to fill airships and balloons?
a) Hydrogen
b) Oxygen
c) Nitrogen
d) Helium
Uses of Elements:
Carbon:
Carbon (C), nonmetallic chemical element in Group 14 (IVa) of the periodic table. Although widely distributed in nature, carbon is not particularly plentiful it makes up only about 0.025 percent of Earth's crust
B and D both are correct
by at 2025-04-04 09:11:35