Bihar SBTE Polytechnic Diploma first year May 2019 Applied Science Chemistry for Sem I & II General
| Sr. No. | Questions with options |
| 1 | Which of the following is strongest oxidizing agent
(a) Li (b) NG (c) K (d) Fe |
| 2 | The high percentage of carbon is in
(a) Cast iron (b) Steel (c) Wrought iron (d) None of these |
| 3 | Bell metal is an alloy of
(a) Cu + Pb (b) Sn + Pb (c) Cu + Pb + Sn (d) None of these |
| 4 | Bauxite ore containing silica as impurity is purified by
(a) Serpeck process (b) Hall process (c) Bacyer process (d) None of these |
| 5 | In Sherardising the base metal is coated with
(a) Al (b) Cr (c) Zn (d) None of these |
| 6 | In impure metal corrosion takes place at
(a) Cathode (b) Anode (c) Both (d) None of these |
| 7 | In saline water corrosion
(a) Increases (b) Decreases (c) Both (d) None of these |
| 8 | When graphite is dispersed in oil it is called
(a) Oil dag (b) Water dag (c) Blended oil (d) None of these |
| 9 | The conductivity of 0.12 N solution of NaCl is 0.024 per Ohm, per cm, Molar conductivity of solution in per Ohm, per cm square, mol is
(a) 200 (b) 100 (c) 400 (d) None |
| 10 | What weight of Cr(52) is deposited when three faraday of electricity is passed through solution of Cr2(SO4)3.
(a) 52 gm (b) 26 gm (c) 104 gm (d) None of these |
| Data Collected By – K. Jeyanthi | |
| Published On – 22nd April 2022 | |
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