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Chemistry in Everyday Life — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryChemistry in Everyday Life1 Mark
MCQ
Which of the following statements are correct?
$a.$ Cationic detergents have germicidal properties.
$b.$ Bacteria can degrade the detergents containing highly branched chains.
$c.$ Some synthetic detergents can give foam even in ice cold water.
$d.$ Synthetic detergents are not soaps.
  • A
    $a$ and $b$
  • B
    $a,b$ and $c$
  • C
    $a,b,c$ and $d$
  • ✓
    $a,c$ and $d$
✓

Answer

Correct option: D.
$a,c$ and $d$
Cationic detergents have germicidal properties and are expensive, therefore, these are of limited use. Synthetic detergents are cleansing agents which have all the properties of soap, but which actually do not contain any soap. These can be used both in soft and hard water as they give foam even in hard water.

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