UPSSSC PHARMACIST EXAMINATION

Pharmaceutics and P. Chemistry (1. Acid, Base and Buffer MCQ)

The UPSSSC Pharmacist Exam is conducted by the Uttar Pradesh Subordinate Services Selection Commission to recruit pharmacists (mainly for government hospitals and health centers in Uttar Pradesh)

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1. According to Arrhenius theory acid is?

(a) Proton acceptor

(b) Electron donor

(d) Produces OH-

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2. According to Arrhenius theory Base is?

a) Gives H+

b) Accepts proton

c) Produces OH-

d) Accepts electron

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3. Acids are substances when dissolved in water gives?

a) Cl ion

b) Na+ ion

c) H+ ion

d) OH- ion

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4. Bases are substances when dissolved in water gives?

a) Cl ion

b) Na+ ion

c) H+ ion

d) OH- ion

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5. According to Bronstate-Lowry Theory Acid is?

a) Proton donor

b) Electron donor

c) H+ ion

d) OH- ion

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6. According to Bronstate-Lowry Theory Base is?

a) Proton donor

b) Electron donor

c) Proton acceptor

d) None

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7. pH of neutral solution at 25 oC

a) 0

b) 14

c) 7

d) 1

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8. Buffers are solution prepared by mixing?

a) A strong base and salt with strong acid

b) A weak base and salt with an weak acid

c) A strong acid and its salt with strong base

d) A weak acid and its salt with a strong base

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9. According to Lewis concept a base is a

a) Nucleophilic

b) Electrophilic

c) Hydroxyl ion donor

d) Proton acceptor

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10. Which is example of Strong acid?

a) CH3COOH

b) HCl

c) NH4OH

d) H2CO3

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11. Which is example of Weak base?

a) NaOH

b) KOH

c) NH4OH

d) Ca(OH)2

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12. Which is example of Amphoteric substance?

a) HCl

b) NaOH

c) NaCl

d) H2O

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13. Which is correct property of Strong Acids?

a) Low ionization

b) High ionization

c) Partial ionization

d) No Ionization

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14. Buffer resists change in?

a) Temperature

b) Pressure

c) pH

d) Volume

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15. Acidic buffer contains?

a) Strong acid+Strong base

b) Weak acid + its salt

c) Weak base + its salt

d) None

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16. Basic buffer contains?

a) Weak base + salt

b) Strong base + acid

c) Weak acid+ salt

d) None

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17. Basic capacity depend on?

a) Volume

b) Concentration

c) Temperature

d) None

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18. pH meter measures?

a) Hydrogen ion concentration

b) Pressure

c) Temperature

d) Volume

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19. What is correct for Acids?

a) Acid salt is sour in taste

b) Acid convert Blue litmus paper into red

c) Acid evolve CO2 gas on reaction with Carbonates.

d) All of these

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20. What is correct for Base?

a) Base is Bitter in taste & soapy in touch.

b) Base convert Red litmus paper into Blue

c) Base give a pink colour with phenopthelene solution

d) All of these

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21. According to Arrhenius theory, A substance which give H+ ion in aquous medium called

a) Acid

b) Base

c) Neutral

d) Buffer

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22. A solution that can resist pH change when small amount of acids or base added in it.

a) Acidic solution

b) Base solution

c) Neutral solution

d) Buffer solution

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23. Accordin to which theory Acid are proton donor and Base are proton acceptor?

a) Arrhenius Theory

b) Lewis Concept

c) Bronstate Lowry Theory

d) None

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24. Accordin to which theory Acid are electron pair acceptor and Base electron pair donar?

a) Arrhenius Theory

b) Lewis Concept

c) Bronstate Lowry Theory

d) None

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25. Accordin to Arrhenius theory, acid & base react to formed?

a) Salt

b) Water

c) Salt and water

d) None

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26.Which one of the following will turn Red litmus into Blue?

a) Vinegar

b) Baking Soda solution

c) Lemon juice

d) Soft drinks

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27. Which one of the following will turn Blue litmus into Red?

a) Vinegar

b) Baking Soda solution

c) Lime water

d) Washing soda solution

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28. Which of the following is not Lewis Bases?

a) H2O

b) NH3

c) H2S

d) AlCl3

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29. Which of the following is Lewis Bases?

a) H-

b) Cl-

c) RS-

d) All of these

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30. The substance which can donate as well as accept proton are called?

a) Bronstate Acid

b) Bronstate Base

c) Amphoteric substance

d) None

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31. Which of the following is Amphoteric Substance?

a) ZnO

b) PbO

c) Al2O3

d) All of these

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32. Which of the following is not a Conjugate acid base pair?

a) HPO3-2, PO3-2

b) H2PO4-, HPO4-2

c) H2PO4-, H3PO4

d) H2PO4-, PO3-3

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33. A buffer shows its maximum buffer capacity when

a) pH<pKa

b) pH=pKa

c) pH>pKa

d) None

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34. pH value to stomach is

a) 3.4-4.5

b) 4.5-5.5

c) 1.5-3.5

d) 3-7

Your score is

The average score is 35%

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