Contents

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


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