Chemistry What particles move around the nucleus of an atom and are negatively charged? Electrons Protons Positrons Neutrons Electrons Protons Positrons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? Iron Aluminium Titanium Copper Iron Aluminium Titanium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Neon Hydrogen Sodium Nitrogen Neon Hydrogen Sodium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Flocculation Filtration Water softening Sedimentation Flocculation Filtration Water softening Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O3 and N2 O2 and O3 Oxides of N and S O2 and N2 O3 and N2 O2 and O3 Oxides of N and S O2 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who modified Bohr's theory by introducing elliptical orbits for electron path Hund Rutherford Thomson Sommerfeld Hund Rutherford Thomson Sommerfeld ANSWER DOWNLOAD EXAMIANS APP
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