Soaps

Q.

What is the chemical name of soap?

Q. In solid state, Boric acid has which type of interaction between layers?

1. Covalent bond
2. None of these
3. Hydrogen bonding
4. Van der Waal's force

Q. Water is said to be permanently hard when it contains:

1. Chloride and sulphates of Mg and Ca.
2. Birrbonates of Na and K.
3. Carbonates of Na and K.
4. Phosphate of Na and K

Q. The reagent (s) that can be used for softening the temporary hardness of water is (are)

1. $Ca(OH{)}_2$
2. ion exchange resins
3. $N{a}_6{P}_6{O}_{18}$
4. None of the above

Q.

Which of the following is not a surfactant?

1. $C{H}_3-(C{H}_2{)}_{15}-N^{+}(C{H}_2{)}_{3}B{r}^{-}$
2. $C{H}_3-(C{H}_2{)}_{14}-C{H}_{2}N{H}_2$
3. $C{H}_3-(C{H}_2{)}_{16}-C{H}_{2}OS{O}_2^{-}N{a}^{+}$
4. $OHC\_\underset{-}{(C{H}_2{)}_{14}}-C{H}_2-CO{O}^{-}N{a}^{+}$

Q. Assertion (A): Hard water forms sticky precipitate with soap.
Reason (R): Hard water contains calcium and magnesium ions

1. Both A and R are true and R is a correct explanation of A
2. Both A and R are true but R is not a correct explanation of A
3. A is true but R is false
4. A is false but R is true

Q. Soaps are-

1. Alkyl benzene sulphonates
2. Sodium salts of long chain carboxylic acids.
3. Glycerides
4. Glyceric ester of higher fatty acids.

Q.

What is the chemical formula of soap?