Which one of the following is NOT a synthetic detergent?
CH₃(CH₂)₁₀CH₂O SO₃⁻Na⁺
[(CH₃(CH₂)₁₅-N⁺(CH₃)₃)]⁺Br⁻
CH₃(CH₂)₆COO⁻Na⁺
CH₃(CH₂)₁₆COO(CH₂CH₂O)ₙCH₂CH₂OH
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy