Chemistry Which amidst the following is not a gem stone ? Opal Topaz Pearl Cat's-eye Opal Topaz Pearl Cat's-eye ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because Its atomic number is 2 It is a noble gas It is one of the constitutents of water It is lighter than air Its atomic number is 2 It is a noble gas It is one of the constitutents of water It is lighter than air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hydrogen is not found in atmosphere because It is highly inflammable It is the lightest gas It immediately combines with oxygen to form water It is absorbed by plants It is highly inflammable It is the lightest gas It immediately combines with oxygen to form water It is absorbed by plants ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Light metals Heavy metals Noble gases Halogens Light metals Heavy metals Noble gases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms having the same number of protons but different number of neutrons are called : Cations Isotopes Anions Higgs-boson Cations Isotopes Anions Higgs-boson ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? CaO Al2O3 CaSO4, 2H2O Na2O + K2O CaO Al2O3 CaSO4, 2H2O Na2O + K2O ANSWER DOWNLOAD EXAMIANS APP
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