a2zinterviews

91.	Which of the following is called a strategic metal?
	A.  Titanium
	B.  Uranium
	C.  Silicon
	D.  Germanium

92.	Nuclear fission is caused by the impact of
	A.  Proton
	B.  Electron
	C.  Neutron
	D.  None of these

93.	Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?
	A.  Ethane
	B.  Butane
	C.  Propane
	D.  Methane

94.	In mirrors the back surface is cotted with a thin layer of
	A.  Silver nitrate
	B.  Silver
	C.  Red oxide
	D.  Mercury

95.	Which of the following is a super cooled liquid?
	A.  Mercury
	B.  Teflon
	C.  Ice cream
	D.  Glass