National Level Online Quiz on Chemistry Certificate 2020 | National Level Quiz with Certificate

National Level Online Quiz on Chemistry Certificate 2020 | National Level Quiz with Certificate

 

              

Question : 1) A non metal which is not a poor conductor of electricity

Answer : Selenium

 

Question : 2) Acetyl salicylic acid is commonly used as

Answer : A pain killer

 

Question : 3) Global warming is caused due to the increase in the level of __________gas.

Answer : Carbon dioxide

 

Question : 4) The composition of Talc is

Answer : Magnesium, silicon, oxygen

 

Question : 5) Which of the following elemenet is most electronegative

Answer : Flourine

 

Question : 6) The mixture of Glass contains

Answer : Sand and silicates

 

Question : 7) Artificial ripening of green fruit is can be done by

Answer : Ethylene

 

Question : 8) The active component of tea and coffee is

Answer : caffeine

 

Question : 9) As compared to other atoms, heavy metals have

Answer : higher densities

 

Question : 10) The paramagnetism is due to the presence of

Answer : unpaired electrons