Chemistry
Vinegar is ________ .

Glacial formic acid
Diluted formic acid
Glacial acetic acid
Diluted acetic acid

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Chemistry
Water is not effective in extinguishing a fire caused by petrol because

Water and petrol are miscible with each other
Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn
The flame is too hot for water to cool it down
Water and petrol react chemically

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