Q. The metal that is used as a catalyst in the hydrogenation of oils is
1) Ni
2) Pb
3) Cu
4) Pt
Q. The metal does not give H2 on treatment with dilute HCL is
1) Zn
2) Fe
3) Ag
4) Ca
Q. The members of a homologous series have
1) the same physical properties
2) different functional groups
3) same chemical properties
4) different methods of preparation
Q. The melting point of copper is
1) 1083°C
2) 732°C
3) 327°C
4) 1835°C
Q. The melting and boiling points of ionic solids are
1) high
2) low
3) very low
4) of intermediate range
Q. The maximum number of covalent bonds formed by nitrogen is
1) 1
2) 2
3) 3
4) 4
Q. The maximum capacity of any orbital is
1) 2
2) 6
3) 14
4) cannot be determined unless the principal quantum number is known
Q. The material that can be permanently deformed by heat and pressure is called a
1) thermoplastic
2) thermoset
3) chemical compound
4) polymer
Q. The mass of one Avogadro number of helium atom is
1) 1.00 g
2) 4.00 g
3) 8.00 g
4) 4*6.02*10 raised to power 23 g
Q. The mass number of an atom is equal to
1) the number of protons
2) the number of protons and electrons
3) the number of nucleons
4) the number of neutrons
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