Chemistry The mass number of an atom is equal to the number of protons and electrons the number of protons the number of nucleons the number of neutrons the number of protons and electrons the number of protons the number of nucleons the number of neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is '6.023 × 10–23 '6.023 × 10–20 6.023 × 1020 6.023 × 1023 '6.023 × 10–23 '6.023 × 10–20 6.023 × 1020 6.023 × 1023 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Sulphuric acid Oxalic acid Lactic acid Citric acid Sulphuric acid Oxalic acid Lactic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Protons Neutrons Electrons Neutrons and protons Protons Neutrons Electrons Neutrons and protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O 2 layer CO2 layer O3 layer SO2 layer O 2 layer CO2 layer O3 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Alkaline soils Acidic soils Saline soils Podsols Alkaline soils Acidic soils Saline soils Podsols ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS