Chemistry Maximum permissible concentration of total hardness in drinking water is 200 500 50 100 200 500 50 100 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following states maximum iron ore is found ? FeS2 FeCO3 Fe3O4 Fe2O3 FeS2 FeCO3 Fe3O4 Fe2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Silicon Magnesium Iron Oxygen Silicon Magnesium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap helps in better cleaning of clothes because Soap acts like catalyst It reduces the surface tension of solution It absorbs the dirt It gives strength to solution Soap acts like catalyst It reduces the surface tension of solution It absorbs the dirt It gives strength to solution ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 It is one of the constitutents of water It is lighter than air It is a noble gas Its atomic number is 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets ANSWER DOWNLOAD EXAMIANS APP
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