1.

(A) Aluminium metal is used as a reducing agentin thermite welding (R) Al has a lower meltingpoint than Fe, Cr and Mn.

Answer»

Both (A) and (R) are TRUE and (R) is the CORRECT explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanationof (A)
(A) is true but (R) is false
Both (A) and (R) are false

Answer :B


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