alleryଏସିଡ୍ ବ୍ୟବହାର କରି ଧାତୁରୁ କଳଙ୍କି ଦୂର କରିବାକୁ କ’ଣ କୁହାଯାଏ?
Aଗାଲଭାନାଇଜିଂ
Bଆନିଲିଂ
Cସ୍ମେଲ୍ଟିଂ
Dପିକ୍ଲିଂ
Answer & Solution
Correct answer: D. ପିକ୍ଲିଂ
କଳଙ୍କି ଏବଂ କ୍ଷୟ ଦୂର କରିବା ପାଇଁ ଧାତୁକୁ ଏସିଡ୍ ସହିତ ଉପଚାର କରିବାକୁ ପିକ୍ଲିଂ କୁହାଯାଏ।
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