PPSC Chemistry Part IV Analytical Chemistry Online Test With Answers

PPSC Chemistry Part IV Analytical Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following species is very poor oxidizing agent H+ Zn<sup>2+</sup> Fe<sup>3+</sup> MnO<sub>4</sub>
2 Which of the following species is very good oxidizing agent. MnO<sub>4</sub> H+ Zn<sup>2+</sup> Fe<sup>3+</sup>
3 Which of the following devoice is used to measure potential difference between celctrodes. Polarimetre Conductometer Voltmeter Photometer
4 Which of the following allows charge transfer through the solution but prevents mixing of the solution. Anode Cathode Electrode cell Salt bridge
5 Which of the following cells is used to produce electricity from chemical reaction Electroytic cell Galvanic cell Voltaic cell Fuel cell Both C and D
6 Which of the following technique describes titrations in which a standard iodine solution is need. Iodometry Iodimetry potentiometry Argentometry
7 The titration involving oxidation reduction reactions is called. Complex titration Simplex titration Redox titration Acid base titration
8 The oxidation number of Mn in KMnO4 +5 +7 +4 +3
9 Which of the following adsorption indicator is used for any of the halides at pH. Fluorescein Eosin Thorin Rhodamine 6 G
10 Which of the following is not an adsorption indicator. Eosin Bromocrsol green Fluorescein Phenolphthalein
11 Which of the following is not an organic precipitating agent. Diemethglyoxime Cuperon Oxime Acetate
12 Which of the following anionic species is not separated by gravimetric analysis. Cl- SO4 CH3COO- PO4
13 Which of the following metal ion cannot be catimated by gravimetric analysis. K+ Ca<sup>2+</sup> Al3+ Zn2+
14 Which of the following analytical techniques can be used to extract metal ion chelates. Solvent extractions Evaporation GC Distillation
15 Which of the following is not a ligand or complexing agent. NH3 CH3COOH EDTA CN-
16 The number of bonds formed by the central atom is called its. Valence number Complex number Coordination number Avogadro's number
17 Which of the following species is determined by complex metric titrations. K+ Na+ Ca+ Cl-
18 Complexing reactions are useful for which of the following method of analysis Gravimetry Spectrophotometry Interfering ions masking All of the above
19 Amino acids are are important in biochemistry which of the following statements is not correct regarding amino acids. These are amphoteric substances tend to undergo internal protein transfer In aqueous solutions these substances tend to undergo internal proton transfer These for zwitter ion in aqueous medium These always contain two amino groups.
20 Which of the following is the best indicator for titration of NH4OH with HCl. Methyl red Methyl orange Eosin Phenolphthalein
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