Chemistry Quiz Competition

Q.1 Which of the following is used in pencils?

• Graphite        

• Silicon

• Charcoal

• Phosphorous

The gas filled in the electric bulb is

• Hydrogen

• Argon    

• Carbon dioxide    

• Oxygen  

Which molecules solid form is a Dry ice?

• Nitrogen oxide                  

• Hydrogen oxide

• Calcium oxide

• Carbon dioxide                  

d-block also known as

• Transition elements

• Non Transition elements

• Alkaline earth metals

• Inner Transition elements

Which of the following is Nobel Gas element

• Kr

• Ne

• Xe

• He

• all of the above

which acid contains in Milk