Q. Which of the following gases is not generated in a biogas plant?
1) CH4
2) H2S
3) C02
4) CO
Q. Metals reacts with acids to give :
1) A salt and Hydrogen
2) A salt and water
3) A salt and Chlorine
4) A salt and base
Q. Which of the following metals is stored in kerosene oil?
1) Gold
2) Platinum
3) Sodium
4) Copper
Q. If the atomic number of Krypton is 36, then its electronic configuration is :
1) 2, 18, 16
2) 2, 8, 20, 6
3) 2, 18, 8, 8
4) 2, 8, 18, 8
Q. Which one of the following is anisotropic in nature?
1) Glass
2) Rubber
3) Plastic
4) Quartz
Q. Which one of the following is not a condensation polymer?
1) Nylon
2) DNA
3) Polythene
4) Bakelite
Q. What product is formed when electricity is passed through an aqueous solution of sodium chloride?
1) Sodium hydroxide
2) Sodium oxide
3) Sodium and chlorine
4) Sodium and water
Q. What is the number of atoms constituting a molecule known as?
1) Atomic number
2) Isotopes
3) Atomicity
4) Atomic mass
Q. ....... is the number of shells for elements of the 3rd period.
1) 2
2) 3
3) 1
4) 0
Q. Which of the following metals is NOT obtained by reduction using carbon?
1) Zinc
2) Copper
3) Sodium
4) Iron
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