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Several blocks of magnesium are fixed to the bottom of a ship to a) Make the ship lighter b) Prevent action of water and salt c) Prevent puncturing by under –sea rocks d) Keeps away the sharks



Several blocks of magnesium are fixed to the bottom of a ship to


a)      Make the ship lighter


b)      Prevent action of water and salt


c)       Prevent puncturing by under –sea rocks


d)      Keeps away the sharks


Grade:11

4 Answers

Hrishant Goswami
343 Points
10 years ago

b)      Prevent action of water and salt

Exp:       Magnesium provides cathodic protection and prevent rusting or corrosion.

Surya Chaitanya
33 Points
10 years ago

(b) 

amaresh
13 Points
6 years ago
it prevents rusting because it provides cathdic protection (b) prevent action of water and salt.
 
Jayant Prasad
13 Points
5 years ago
Several blocks of magnesium are fixed to the bottom of a ship to. Magnesium, on account of its lightness, great affinity for oxygen and toughness is used in ship. Being a lighter element, magnesium makes the ship lighter when it is fixed to the bottom of the ship.
So, option D seems correct

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