Chemistry Test Bank
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Avg score: 27% • Most missed: “Total number of orbitals in a shell having principle quantum number ‘n' is”
Chemistry Test Bank
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25 Questions

1. Zn | Zn2+ (C1) || Zn2+ (C2) | Zn. For this cell, ΔG is negative if
2. Of the following radiations, the one most easily stopped by air is composed of
3. Pt (Cl2, g) | HCl (0.1 M) | Pt (Cl2, g), where P1 and P2 are pressures. The cell reaction will be spontaneous if
4. The number of unit cells in 58.5 g of NaCl is approximately
5. During dehydration, the substance that the body usually loses is
6. Which of the following compounds show optical isomerism? (en = ethylenediamine) (I) cis-[Co(NH3)4Cl2] (II) trans-[Co(en)2Cl2] (III) cis-[Co(en)2Cl2] (IV) [Co(en)3] Select the correct answer using the codes given below.
7. For the reaction, H2 (g) + I2 (g) 2 HI (g) at 721 K, the value of equilibrium constant (Kc) is 50. When the equilibrium concentration of both is 0.5M, the value of Kp under the same conditions will be
8. Paraffin wax used for making candles is obtained from
9. The raw material from which rayon is manufactured is
10. The shape of sulphate ion is
11. The mass number of a nucleus is
12. The gas used for artificial ripening of green fruits is
13. C2 ' C3 sigma single bond in vinyl acetylene is due to overlapping of
14. The wavenumber of the first line in the Balmer series of hydrogen is 15,200 cm'1, wavenumber of the first line in Balmer series of Be3+ is
15. Automobile air pollution is due to
16. Which pair is different from others?
17. In a chemical reaction, K2Cr2O7 + x H2SO4 + y SO2 → K2SO4 + Cr2(SO4)3 + z H2O x, y, z are, respectively
18. Extraction of Ag from sulphide ore uses complexes
19. Froth floatation is generally used for the concentration of
20. IUPAC name of Na3[Co(NO2)6] is
21. The rate of reaction is doubled for every 10° rise in temperature. The increase in reaction rate as a result of temperature rise from 10° to 100° is
22. 10 ml of NaHC2O4 is oxidized by 10 ml of 0.02 M MnO4. Hence 10ml of NaHC2O4 is neutralized by
23. The ratio of potential energy and total energy of an electron in a Bohr orbit of He+ is equal to
24. Which of the following halides is not oxidized by MnO2?
25. The reaction of calcium with water is represented by the equation Ca+2H2OCa(OH)2+ H2. The volume of hydrogen measured at STP that would be liberated when 8 g calcium completely reacts with water is

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