Chemistry Which one of the following organic compound is used to remove stains of iron compounds? Cinnamic acid Benzoic acid Phthalic acid Oxalic acid Cinnamic acid Benzoic acid Phthalic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in making smoke bombs? Carbon Sulphur Phosphorus Hydrogen Carbon Sulphur Phosphorus Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From brown to orange-red From blue to pink From pink to blue-green From brown to blue-black From brown to orange-red From blue to pink From pink to blue-green From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Electrons Positrons Protons Neutrons Electrons Positrons Protons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most extensive, commercially useful source of thorium as monazite sand occurs in India at Gujarat coast Travancore coast Orissa coast West Bengal coast Gujarat coast Travancore coast Orissa coast West Bengal coast ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacture of iron from iron ore involves the process of Electrolysis Fractional distillation Oxidation Reduction Electrolysis Fractional distillation Oxidation Reduction ANSWER DOWNLOAD EXAMIANS APP
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