General Knowledge MCQ - English
Chemical formula for water is
NaAlO2
H2O
Al2O3
CaSiO3
Answer : B
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1) Atoms of an element differ from those of all other elements in
atomic number and electronic configuration
number of neutrons and number of valence electrons
atomic number and number of valence electrons
number of neutrons and electronic configuration
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2) Which of the following metals remain in liquid for under normal conditions?
3) Which of the following is not an isotope of hydrogen?
4) Brass gets discoloured in air because of the presence of which of the following gases in air?
5) The element common to all acids is
