Quiz 1

Digestion of food completes in

• Mouth

• Stomach

• Small intestine

• Large intestine

Insuline is secreted from

• Stomach

• Gall bladder

• Pancreas

• Mouth

Which is the electronic configuration of Na

• 2,2,7

• 2,8,1

• 8,2,1

• 2,9

The colour of CuSO4 solution changes with iron nails dipped in due to

• Addition reaction

• Redox reaction

• Displacement reaction

• Double displacement reaction

Which is biodegradable

• Iron

• Plastic

• Newspaper

• Wood