General Science When an iron nail gets rusted, iron oxide is formed With increase in the weight of the nail Without any change in colour or weight of the nail Without any change in the weight of the nail With decrease in the weight of the nail With increase in the weight of the nail Without any change in colour or weight of the nail Without any change in the weight of the nail With decrease in the weight of the nail ANSWER DOWNLOAD EXAMIANS APP
General Science Marsh gas is Hydrogen Nitrogen Methane Ethane Hydrogen Nitrogen Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
General Science The group of metals Fe, Co, Ni may best called as Transition metals Rare metals Alkali metals Main group metals Transition metals Rare metals Alkali metals Main group metals ANSWER DOWNLOAD EXAMIANS APP
General Science Permanent hardness of water can be removed by adding Potassium Permanganate Bleaching Powder Chlorine Washing Soda Potassium Permanganate Bleaching Powder Chlorine Washing Soda ANSWER DOWNLOAD EXAMIANS APP
General Science The filament of an electric bulb is made of Tungsten Graphite Iron Nichrome Tungsten Graphite Iron Nichrome ANSWER DOWNLOAD EXAMIANS APP
General Science Noise or Noise pollution measured in: Decimal Phon Deci Decibel Decimal Phon Deci Decibel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS