Chemistry Gold dissolves in Nitric acid Aqua-regia Acetic acid Hydrochloric acid Nitric acid Aqua-regia Acetic acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid which fails to liberate carbon dioxide from sodium bicarbonate is : Formic acid Sulphuric acid Acetic acid Carbonic acid Formic acid Sulphuric acid Acetic acid Carbonic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'All the four quantum numbers of two electrons in an atom are not the same.' It is the law of – Hund's rule of maximum multiplicity Avogadro's Law Exclusion Principle of Pauli Uncertainty Principle of Hiesenberg Hund's rule of maximum multiplicity Avogadro's Law Exclusion Principle of Pauli Uncertainty Principle of Hiesenberg ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Tetraethyl lead Trimethyl lead Tetramethyl lead Triethyl lead Tetraethyl lead Trimethyl lead Tetramethyl lead Triethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Decomposition of manganese dioxide Fractional distillation of liquid air Electrolysis of water Decomposition of potassium permanganate Decomposition of manganese dioxide Fractional distillation of liquid air Electrolysis of water Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Carbon dioxide Methane Sulphur dioxide None of these Carbon dioxide Methane Sulphur dioxide None of these ANSWER DOWNLOAD EXAMIANS APP
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