(A) 600 C for 10 minutes
(B) 630 C for 20 minutes
(C) 630 C for 30 minutes
(D) 720 C for 10 minutes
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Online Test Preparation and Mcqs Website.
(A) 600 C for 10 minutes
(B) 630 C for 20 minutes
(C) 630 C for 30 minutes
(D) 720 C for 10 minutes