Solution: An alloy is a homogeneous mixture containing two or more metals in it. Bronze is an alloy made by mixing copper (Cu)and tin (Sn). Hence the correct option is B.

ADDITIONAL INFORMATION: The meaning of the term ‘alloy’ is a substance formed from the combination of two or more metals. Alloys can also be formed from combinations of metals and other elements. An example of an alloy is red gold, which is produced by alloying copper and gold together.

Solution: The number of water molecules present in one formula unit of salt is known as the water of crystallization. Potassium Permanganate (KMnO₄) is an inorganic chemical compound. So because no water molecule is present in this compound it does not possess water of crystallization. Hence the correct option is A.

ADDITIONAL INFORMATION:

Blue vitriol is copper sulphate pentahydrate CuSO4​⋅5H2​O. It has 5 moles of water.
Washing soda is sodium carbonate monohydrate Na2​CO3​⋅H2​O

Mohr's Salt, also referred to as ammonium iron(II) sulfate, is an inorganic compound whose chemical formula is represented as (NH₄)₂Fe(SO₄)₂(H₂O)₆

Solution: Digestion of fat takes place in the small intestine. Fat reaches the small intestine in the form of large globules. The liver releases bile juice which emulsifies the fat i.e. it breaks down the large globules into smaller globules. Lipase acts and breaks down the globules into molecules. Hence, option B is correct.

ADDITIONAL INFORMATION:

* Amylase is an enzyme, or special protein, that helps you digest carbohydrates.

* Trypsin is an enzyme that aids with digestion.

* Pepsin is an endopeptidase that breaks down proteins into smaller peptides.

Solution: Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall. Hence, option B is correct.

Given,

Electric potential of generator= 220 V

Current flowing through the bulb= 600 mA= 0.6 A

Therefore,

Power of bulb=== 132 W.

Hence the correct option is A.

ADDITIONAL INFORMATION

V= Electric potential, Voltage

I= Ampere, S.I. unit of electric current