Chemistry Solved Questions and Answers Set 35

February 10, 2019 entranciology Chemistry Solved Questions and Answers Sets, Solved Questions and Answers Sets For Competitive Exams 0

Q.1:- Bell metal is an alloy of ?

  1. Cu + Sn
  2. Cu + Zn
  3. Cu + Ni
  4. Cu + Pb

Q.2:- Aluminium salt commonly used to stop bleeding is ? [SSC Exams 2015]

  1. Aluminium Chloride
  2. Aluminium Nitrate
  3. Aluminium Sulphate
  4. Potash Alum

Q.3:- Which of the following is a Carbonate Ore ?

  1. Limonite
  2. Carnallite
  3. Horn Silver
  4. Siderite

Q.4:- Cement does not contain ?

  1. Iron
  2. Aluminium
  3. Calcium
  4. Sulphur

Q.5:- The chemical name of Plaster of Paris is ? [BSSC Exam 2015]

  1. Calcium Chloride
  2. Calcium Nitrate
  3. Calcium Sulphate Hydrate
  4. None of these

Q.6:- The man-made transition element is ?

  1. Zr
  2. Tc
  3. Sc
  4. Hf

Q.7:- Which one among the following does not wet the walls of the glass vessel in which it is kept ? [NDA Exam 2015]

  1. Water
  2. Alcohol
  3. Mercury
  4. Phenol
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Q.8:- Which alloy can have Iron also ?

  1. Monel Metal
  2. Constantan
  3. Aluminium Bronze
  4. Brass

Q.9:- The nature of aqueous solution of FeCl3 is ?

  1. Neutral
  2. Basic
  3. Amphoteric
  4. Acidic

Q.10:- The highest oxidation state is shown by ?

  1. Ti
  2. Cr
  3. V
  4. Sc

Q.11:- Iron is manufactured from the ore ?

  1. Cryolite
  2. Bauxite
  3. Haematite
  4. Chalcopyrite

Q.12:- Which of the following does not show variable oxidation states ?

  1. Iron
  2. Titanium
  3. Copper
  4. Zinc

Q.13:- Wrought Iron is ?

  1. Iron mixed with 0.1 to 0.2% Carbon
  2. Cast Iron
  3. Alloy of Steel
  4. Impure Sulphide Mineral

Q.14:- The isotope of Hydrogen which is radioactive is ?

  1. Tritium
  2. Para Hydrogen
  3. Nascent Hydrogen
  4. Deutrium

Q.15:- High dipole moment of water (1.03 D) justifies that ?

  1. It is not a linear molecule
  2. It has higher density than ice
  3. It is neutral towards litmus
  4. It is a universal solvent
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Q.16:- Water is a / an ?

  1. Acidic Oxide
  2. Basic Oxide
  3. Amphoteric Oxide
  4. Neutral Oxide

Q.17:- Water is an excellent solvent because its molecules are ? [SSC (Stenographer) Exam 2014]

  1. Highly Polar
  2. Non-Polar
  3. Light Weight
  4. Neutral

Q.18:- Amphoteric oxide is / are ?

  1. Al2O3
  2. P2O3
  3. TI2O3
  4. CO2

Q.19:- Dry ice is the solid form of ? [SSC (LDC) Exams 2015]

  1. Carbon Dioxide
  2. Water
  3. Nitrogen
  4. Air

Q.20:- The element which shows least metallic character is ?

  1. Indium
  2. Aluminium
  3. Boron
  4. Gallium

Q.21:- Carbon reacts with metal to form ?

  1. Carbide
  2. Carbonate
  3. Hydroxide
  4. Oxide

Q.22:- The inert form of Carbon is ?

  1. Graphite
  2. Coal
  3. Diamond
  4. Charcoal

Q.23:- Formula of tear gas is ?

  1. N2O
  2. COCl2
  3. Cl3NO3
  4. None of the above
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Q.24:- Ultra Silicon is prepared by the process of ?

  1. Crystallization
  2. Sublimation
  3. Zone Refining
  4. Fractional Distillation

Q.25:- Sugar of lead is ?

  1. PbCl2
  2. PbSO4
  3. Pb(CH3COO)2
  4. PbCO3

 

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