Chemistry Which one of the following is a micro-element ? Chlorine Oxygen Nitrogen Hydrogen Chlorine Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 127 118 112 115 127 118 112 115 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 19 16 18 17 19 16 18 17 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas is : Bleaching powder Carbonyl chloride Chloroprene Nitrous oxide Bleaching powder Carbonyl chloride Chloroprene Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH scale ranges from None 0 – 14 8 – 14 0 – 7 None 0 – 14 8 – 14 0 – 7 ANSWER DOWNLOAD EXAMIANS APP
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