Chemistry Stains of rust on clothes can be removed by : Oxalic acid Petrol Alcohol H2O2 Oxalic acid Petrol Alcohol H2O2 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 blue to pink From pink to blue-green From brown to orange-red From brown to blue-black From blue to pink From pink to blue-green From brown to orange-red From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry Williamson's synthesis is widely used in the laboratory preparation of Alcohols Aldehydes Esters Ethers Alcohols Aldehydes Esters Ethers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which mineral is the ore of aluminium ? Bauxite Magnetite Haematite Siderite Bauxite Magnetite Haematite Siderite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table Dmitri Mendeleev Julius Lothar Meyer John Dalton Henry Moseley Dmitri Mendeleev Julius Lothar Meyer John Dalton Henry Moseley ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Trade winds Dry farming Fire in coal mines Greenhouse effect Trade winds Dry farming Fire in coal mines Greenhouse effect ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS