Question

व्हेन वी पुट बर्निंग कैंडल नियर द माउथ ऑफ टेस्ट ट्यूब कंसिस्टिंग ऑफ सल्फ्यूरिक एसिड ​

Answer 1

Answer:

When a burning candle is brought near the mouth of test-tube over negative elecrode, the gas in it burns rapidly making a 'poping sound' that means the gas is hydrogen. When a burning candle is brought near the mouth of test-tube over positive electrode, the gas in it burns brightly that means the gas is oxygen.