Question

During the reaction of some metals with dilute hydrochloric acid, following observations were made. Explain these observations. (a) Silver metal does not show any change. (b) The temperature of the reaction mixture rises when aluminium (Al) is added. (c) The reaction of sodium metal is found to be highly explosive.

Answer 1

Answer:

Explain these observations giving suitable reasons. Answer: Silver is a noble metal and hence it does not react with dilute hydrochloric acid. (b) The temperature of the reaction mixture rises when aluminium (Al) is added. Answer: Reaction between hydrochloric acid and aluminium is exothermic.

Explanation:

in hindi=उपयुक्त कारणों को देते हुए इन टिप्पणियों की व्याख्या करें उत्तर: चांदी एक महान धातु है और इसलिए यह पतला हाइड्रोक्लोरिक एसिड के साथ प्रतिक्रिया नहीं करता है।(B) प्रतिक्रिया मिश्रण का तापमान बढ़ता है जब एल्यूमीनियम (AL) जोड़ा जाता है।जवाब: हाइड्रोक्लोरिक एसिड और एल्यूमीनियम के बीच प्रतिक्रिया एक्स ओथेर्मिक है