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Worksheetschemistry cdf
Total questions: 15
Worksheet time: 9mins
the substance which readily lose electrons and forms positive ions (cation) are called as
metals
non metals
metalloids
none of the above
metals are
lustrous
conductivity
brittle
both 1 and 2
_________ are homogenous mixture of two or more electrons
substance
alloys
element
metals form (a) oxides when they react with oxygen
highly reactive metals replace less reactive from its _________
salt solution
aqueous salt solution
both 1 and 2
none
metal salts and hydrogen gas are produced when metals reacts with
acidic acid
dilute acid
dilute solution
none
the substance which readily gain electrons to form negative ions (anion) is called
metals
non metals
metalloids
none
_____ and _______ are major constituents of air
O2
N2
both 1 and 2
graphite and diamond are allotropes of
(a)
non metals are
brittle
soft
non luster
acts as insulators
non metals are generally form
basic oxides
acidic oxides
______ will not form acid or basic with water
N
CO
O
C
non metals do not react with
dilute acid
water
carbon
salt solution
reactivity series of metals
Cu>Hg>Ag>Au>Pt
Cu>Hg>Au>Ag>Pt
Hg>Ag>Cu>Pt>Au
metals give metallic ________ with chlorine and metallic ______ with hydrogen
hydrides, chlorides
chlorides, hydrides
chlorine, hydrogen
hydrogen, cholorine
