WorksheetsMetals and Non Metals_X
Total questions: 17
Worksheet time: 13mins
Calamine is an ore of
Ca
Fe
Zn
Cu
The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:
NO2 and NO
NO and N2O
NO2 and N2O
N2O and NO2
In general, anodizing is a process of forming a thick oxide layer of ---------------------
aluminium
iron
cobalt
manganese
The reaction of calcium with water is less violent. When calcium reacts with water it starts floating because -
the bubbles of hydrogen gas formed stick to the surface of the metal.
Calcium is lighter than water
At higher temperature, the density of calcium decreases
None
Which of the following does not react with cold water?
Na
K
Li
Mg
Which of the following will not react with steam?
Mg
Fe
Al
Cu
Which of the following metals react with dilute nitric acid to evolve H2 gas?
Mg and Mn
Zn and Fe
Na and K
Ca and Mg
Which of the following would have the least electrical conductivity?
Silver
Copper
Silicon
Oxygen
As one moves top to down in a periodic table, metallic nature ---------------
increases
decreases
remains the same
None
Iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner. The reason behind this is:
iron filings have different chemical composition than iron
iron filings are non magnetic in nature
iron filings have larger surface area
iron filings are less reactive
Oxides of which of these metals is amphoteric in nature
Na
K
Al
Mg
Which of these is a metalloid?
C
Fe
Ge
Sn
Aqua regia, (Latin for ‘royal water’) is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of -------------
1:3
3:1
1:2
2:1
When zinc is added to copper sulphate solution -------------
the blue colour of copper sulphate disappears
the blue colour of copper sulphate intensifies
the blue colour of copper sulphate remains the same
None
Which is the correct order of reactivity series of metals?
Mg > Al > Zn > Fe
Fe > Zn > Al > Mg
Al > Mg > Fe > Zn
Al > Mg > Zn > Fe
Which of the following is a poor conductor of electricity?
NaCl(s)
Fused NaCl
Ag
Graphite
Reduction using Carbon will be not a suitable method for extraction of
Fe
Pb
Cu
Al
