DAE CH 213 Chapter 7 MCQs

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DAE | CH-213

APPLIED CHEMISTRY

CHAPTER : 07

DIPLOMA OF ASSOCIATE ENGINEERING

EXAM PRAPARATION

COMMON WITH:

APPLIED CHEMISTRY

MULTIPLE CHOICE QUESTION

Chapter:07 (Acids, Bases & Salts)

Question 1:

The bases give………. ions in water

\({H^{+}}\) \(O{H^{-}}\) \({H^{-}}\) \({H_3}{O^{+}}\)

Question 2:

Which one is a Lewis acid?

\({F^{-}}\) \({O{H^{-}}}\) \({N{H_3}}\) \({B{F_3}}\)

Question 3:

Which one is a Lewis base?

\({N{H_3}}\) \({H_3}{O^{+}}\) \({B{F_3}}\) \({Al{Cl_3}}\)

Question 4:

The process in which base reacts with oil and form soap is called……?

Halogenation Saponification Neutralization Oxidation

Question 5:

The basicity of CH3COOH is…..?

1 2 3 4

Question 6:

The acidity of sodium hydro oxide is…..

4 2 3 1

Question 7:

Which one is alkali?

\(KOH\) \(Cu{(OH)_2}\) \(Al{(OH)_3}\) \(Ba{(OH)_2}\)

Question 8:

Alum is an example of….

Complex Double Acidic Basic

Question 9:

The pH of pure water is….

4 0 14 7

Question 10:

The solution having pH six is called….

strong acid strong base Weak acid weak base

Question 11:

pH is equal to…..

\(-log[{H^{+}}]\) \(-log[O{H^{-}}]\) \(+log[{H^{+}}]\) \(+log[O{H^{-}}]\)

Question 12:

The number of ionizable hydrogen atoms present in a acid molecule is called it’s……

Acidity Basicity Allotropy Radioactivity

Question 13:

According to Lewis concept, an acid…….

Accept pair of electron Donate pir of electron Accept pair of proton Donate pair of proton

Question 14:

\({KH_2}{PO_4}\) is ……salt.

Acidic Basic Neutral Double

Question 15:

The pH range of a basic solution is

1 to 4 5 to 6 0 to 7 8 to 14

Question 16:

How many water molecules are in the crystal of copper sulphate molecule \(({Cu}{SO_4})\).

5 12 6 7

Question 17:

The nature of solution having pH more than seven will be ………

Neutral Acidic Basic Amphoteric

Question 18:

Which one is a double salt?

\({Cu}{SO_4}.{5{H_2}O}\) \({{Na_2}{CO_3}.{10{H_2}O}}\) \({Na_2}{SO_4}\) \({{K_2}{SO_4}}.{{Al_2}{{(SO_4)}_3}}\)

Question 19:

What will be the effect of mixing more water in acidic solution……

pH will increase pH will decrease pH will remain constant pH will become 14

Question 20:

Which one has slippery touch?

Acid base Salt double salt

Quiz Results

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Correct Answers:

Incorrect Answers:

Percentage:

NOTE

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INSTRUCTOR

MUHAMMAD BIN JAMEEL

BSC ENGG. CIVIL