Chemistry In upper layer of atmosphere ozone is formed by The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Plaster of Paris' is made by partial dehydration of Green vitriol Blue vitriol Gypsum salt Epsom salt Green vitriol Blue vitriol Gypsum salt Epsom salt ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide present in the industrial chimney exhaust causes Reduction in plant's productivity owing to acid rain Corrosion building materials All of these Respiratory and lung disease Reduction in plant's productivity owing to acid rain Corrosion building materials All of these Respiratory and lung disease ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn The flame is too hot for water to cool it down Water and petrol are miscible with each other Water and petrol react chemically Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn The flame is too hot for water to cool it down Water and petrol are miscible with each other Water and petrol react chemically ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nuclear particles which are assumed to hold the nucleons together are electrons neutrons positrons mesons electrons neutrons positrons mesons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a renewable source of energy ? Coal Uranium Geothermal powder Natural gas Coal Uranium Geothermal powder Natural gas ANSWER DOWNLOAD EXAMIANS APP
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