Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Graphite Sodium Phosphorus Silicon Graphite Sodium Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following substances all carbon atoms are quaternary in nature ? Napthalene Graphite Teflon Diamond Napthalene Graphite Teflon Diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 Dil. HCl and dil. HNO3 Conc. HNO3 and conc. H2SO4 Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is the heaviest in periodic table among the following ? Pb Pt W Os Pb Pt W Os ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a lead storage battery is discharged, Lead sulphate is consumed SO2 is evolved Lead is formed Sulphuric acid is consumed Lead sulphate is consumed SO2 is evolved Lead is formed Sulphuric acid is consumed ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is found in chlorophyll ? A l3+ Mg2+ Fe2+ Ca2+ A l3+ Mg2+ Fe2+ Ca2+ ANSWER DOWNLOAD EXAMIANS APP
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