graphite
The non-metal which is liquid at room temperature is:
a) Mercury
b) Bromine
c) Carbon
d) Helium
Bromine
A lustrous coloured non metal
Iodine
Ca(s) + 2H2O(l) →
Ca(OH)2(aq) + H2(g
copper
The number of protons in an atom of an element A is 19 then, the number of electron in its ion A+ is:
a) 18
b) 19
c) 20
d) 21
18
A metal, which is a poor conductor of heat.
Lead and mercury
K2 O(s) + H2O(l) →
2KOH(aq)
iron
Which of the given properties is generally not shown by metals?
A. Electrical conduction
B. Sonorous in nature
C. Dullness
D. Ductility
Dullness
a metal react with hot water
magnesium
Al2O3 + 2NaOH →
2NaAlO2 + H2O (Sodium aluminate
bromine
Which of the following pairs of reactants will go undergo a displacement reaction?
(a) CuSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Fe
(d) Ca(SO4)2 + Fe
CuSO4 + Fe
metals react with steam
Al, Zn, Fe
formation of ionic compound, magnesium chloride
sulphur
Which among the following is the most abundant metal found in the earth’s crust?
(a) Magnesium
(b) Aluminium
(c) Oxygen
(d) Iron
Aluminium
A metal which can melt while kept on palm,
Gallium and Caesium
2Al(s) + 3H2O(g) →
Al2O3(s) + 3H2(