Chemical Process Manufacture of phthalic anhydride uses __________ as a catalyst. Cr V₂O₅ Ni Al₂O₃ Cr V₂O₅ Ni Al₂O₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used As a rust preventive As a foam depressant in distillation column As a lubricant In hard water for cleaning of cloth As a rust preventive As a foam depressant in distillation column As a lubricant In hard water for cleaning of cloth ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The most reactive allotropic form of phosphorus is __________ phosphorus. Yellow Black Red Violet Yellow Black Red Violet ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? Caustic soda Sodium borate Sodium tripolyphosphate (STPP) Sodium silicate Caustic soda Sodium borate Sodium tripolyphosphate (STPP) Sodium silicate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not a raw material used for the manufacture of ordinary glass? Silica Iron oxide Soda ash Limestone Silica Iron oxide Soda ash Limestone ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Systemic insecticides Emit poisonous vapour Kill insects following external bodily contact Are stomach poisons Are absorbed throughout the plant Emit poisonous vapour Kill insects following external bodily contact Are stomach poisons Are absorbed throughout the plant ANSWER DOWNLOAD EXAMIANS APP
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