Someone has broken your pen. (choose the correct passive Voice)
a) Your pen has been broken by someone
b) Your pen have been broken by someone
c) Your pen is being broken by someone
d) Your pen had been broken by someone
Dental amalgam is an example of solution:
a) Solid in solid
b) Solid in liquid
c) Liquide in solid
d) Liquide in liquid
Explanation: Dental amalgam is a dental filling material used to fill cavities caused by tooth decay.
Dental amalgam is a mixture of metals consisting of liquid (elemental) mercury and a powdered alloy composed of silver, tin, and copper.
Work done will be zero when the angle between force and displacement is:
a) 300
b) 450
c) 900
d) 00
Explanation: The angle should be 90∘ between force and displacement, for the work to be zero.
Chemical antibodies are:
a) Lipids
b) Starches
c) Proteins
d) None of these
Explanation: From the chemical perspective, an antibody (Ab) is a protein composed of four polypeptide chains, including two light chains and two heavy chains
Value of x in the expression 2x – 6 = 0 is:
a) 4
b) 3
c) 2
d) 12
