Question

42)
एक लीटर तेलाचे वजन 945 ग्रॅम भरते. एका साडे पन्नास कि.ग्रॅम वजनाच्या बॅरेलमध्ये 335 लीटर
तेल मावते तर त्या बॅरेलसह तेलाचे एकूण वजन किती?
1) 367 किग्रॅ 75 ग्रॅम 2)316 किग्रॅ 575 ग्रॅम 3) 403 किग्रॅ 535 ग्रॅम
4)376 किग्रॅ 705 ग्रॅम​

Answer 1

Step-by-step explanation:

Give the chemical name and chemical formulae of the following:

(a) A reddish brown deposit formed on iron nail on exposure to damp air

(b) A greenish layer formed on copper articles on long exposure to air.

(c) A blackish tinge formed on silver vessels

(ii) Also mention condition/conditions necessary for their formation in each case.

(iii) Name the process involved and define it.