Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Light metals Noble gases Halogens Heavy metals Light metals Noble gases Halogens ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is NaHCO3 Na2SO4.10H2O Ca(OH)2 Na2CO3.10H2O NaHCO3 Na2SO4.10H2O Ca(OH)2 Na2CO3.10H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Assertion (A) : Synthetic detergents can lather wen in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water. A is true but R is false Both A and R is true but R is not a correct explanation of A Both A and R is true and R is the correct explanation of A A is false but R is true A is true but R is false Both A and R is true but R is not a correct explanation of A Both A and R is true and R is the correct explanation of A A is false but R is true ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Oxides of nitrogen Oxides of sulphur Smoke Hydrocarbon Oxides of nitrogen Oxides of sulphur Smoke Hydrocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry When ice cubes are made, the entropy of water Increases May either increase or decrease depending on the process used Decreases Does not change Increases May either increase or decrease depending on the process used Decreases Does not change ANSWER DOWNLOAD EXAMIANS APP
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