Chemistry Which is the purest commercial form of iron ? Pig iron Stainless steel Wrought iron Steel Pig iron Stainless steel Wrought iron Steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an Electrochemical change Physical change Electrical change None of these Electrochemical change Physical change Electrical change None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Nitrogen Air Hydrogen Helium Nitrogen Air Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Limestone and graphite Limestone and clay Chalk and graphite Clay and graphite Limestone and graphite Limestone and clay Chalk and graphite Clay and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not coal variety? Peat Lignite Dolomite Bituminous Peat Lignite Dolomite Bituminous ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight First increases and then decreases Remains the same Decreases Increases First increases and then decreases Remains the same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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