Daily Updates Mock Test 63

50 Questions | Total Attempts: 152

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Daily Updates Mock Test 63

MOCK TEST 63 SYLLABUS : CHEMISTRY TIME : 20 MINUTES FULL MARKS : 50*5 = 250 EACH QUESTION CARRIES 5 MARKS , -VE MARKING = - 1 / WRONG ANSWER আজকের মোক টেস্ট নেওয়া হবে রাত 9. 30 PM থেকে , এই মোক টেস্ট দেওয়া যাবে কাল সকাল 11 টা পর্যন্ত OUR FACEBOOK GROUP : DAILY UPDATES CLICK HERE TO JOIN OUR FACEBOOK PAGE : STUDY MATERIALS FOR ALL CLICK HERE TO FOLLOW OUR TELEGRAM CHANNEL LINK : STUDY MATERIALS FOR ALL CLICK HERE TO FOLLOW PSC GUIDE BOOK FOR (MVI,WORKS ACNTNT,FOOD SI) CLICK HERE TO DOWNLOAD


Questions and Answers
  • 1. 
    The most abundant rare gas in the atmosphere is
    • A. 

      He

    • B. 

      Ne

    • C. 

      Ar

    • D. 

      Xe

  • 2. 
    The Latin word formica means ant. The name formic acid is derived from this Latin word because
    • A. 

      This acid, in ancient times, was used to eliminate ant-hills

    • B. 

      This corrosive acid is secreted by ants to drive away their enemies

    • C. 

      This acid was first obtained by the distillation of ants

    • D. 

      Ants are attracted by the odour of this acid

  • 3. 
    The ore which is found in abundance in India is
    • A. 

      Monazite

    • B. 

      Fluorspar

    • C. 

      Bauxite

    • D. 

      Magnetite

  • 4. 
    The inherited traits of an organism are controlled by
    • A. 

      RNA molecules

    • B. 

      Nucleotides

    • C. 

      DNA molecules

    • D. 

      Enzymes

  • 5. 
    The heat energy produced when the human body metabolises 1 gram of fat is
    • A. 

      30 KJ

    • B. 

      1 KJ

    • C. 

      39 KJ

    • D. 

      29 KJ

  • 6. 
    What are the number of moles of CO2 which contains 16 g of oxygen?
    • A. 

      0.5 mole

    • B. 

      0.2 mole

    • C. 

      0.4 mole

    • D. 

      0.25 mole

  • 7. 
    The main use of salt in the diet is to
    • A. 

      Make the taste of food better

    • B. 

      Produce in small amounts the hydrochloric acid required for the digestion of food

    • C. 

      Ease the process of cooking

    • D. 

      Increase the solubility of food particles in water

  • 8. 
    The monomer of polythene is
    • A. 

      Vinyl chloride

    • B. 

      Ethylene

    • C. 

      Ethyl alcohol

    • D. 

      None of the above

  • 9. 
    The luster of a metal is due to
    • A. 

      its high density

    • B. 

      Its high polishing

    • C. 

      Its chemical inertness

    • D. 

      Presence of free electrons

  • 10. 
    The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is
    • A. 

      1.568 x 103

    • B. 

      6.023 x 1019

    • C. 

      4.84 x 1017

    • D. 

      6.023 x 1023

  • 11. 
    The most malleable metal is
    • A. 

      Platinum

    • B. 

      Silver

    • C. 

      Iron

    • D. 

      Gold

  • 12. 
    The oil used in the froth floatation process is
    • A. 

      Coconut oil

    • B. 

      Olive oil

    • C. 

      Kerosene oil

    • D. 

      Pine oil

  • 13. 
    The number of waves in n x 10th Bohr's orbit are
    • A. 

      N2

    • B. 

      N

    • C. 

      N-2

    • D. 

      N3

  • 14. 
    The mass of one Avogadro number of helium atom is
    • A. 

      1.00 gram

    • B. 

      4.00 gram

    • C. 

      8.00 gram

    • D. 

      4 x 6.02 x 1023 gram

  • 15. 
    The items amenable to detection by soft x-rays are
    • A. 

      Contrabands

    • B. 

      Lead in bullets

    • C. 

      Narcotics

    • D. 

      Genuine coins from counterfeit coins

  • 16. 
    The material which can be deformed permanently by heat and pressure is called a
    • A. 

      Thermoplastic

    • B. 

      Thermoset

    • C. 

      Chemical compound

    • D. 

      Polymer

  • 17. 
    The mass number of a nucleus is
    • A. 

      Always less than its atomic number

    • B. 

      The sum of the number of protons and neutrons present in the nucleus

    • C. 

      Always more than the atomic weight

    • D. 

      A fraction

  • 18. 
    The inexpensive and commonly used variety of glass is called soda glass. It is called so because
    • A. 

      Was used initially for making bottles of soda(carbonated drink)

    • B. 

      Is made using soda(sodium carbonate)

    • C. 

      Was initially used for storing sodium carbonate

    • D. 

      Is made using soda lime

  • 19. 
    The gas used in the manufacture of vanaspati from vegetable oil is
    • A. 

      Hydrogen

    • B. 

      Oxygen

    • C. 

      Nitrogen

    • D. 

      Carbon dioxide

  • 20. 
    The ionic radii of N3-, O2-, F- and Na+ follows the order
    • A. 

      N3- > O2- > F- > Na+

    • B. 

      N3- > Na+ > O2- > F-

    • C. 

      Na+ > O2- > N3- > F-

    • D. 

      O2- > F- > Na+ > N3-

  • 21. 
    The graphite rods in the nuclear reactor
    • A. 

      React with U to release energy

    • B. 

      Produce neutrons

    • C. 

      Undergo combustion which triggers the nuclear fission

    • D. 

      Convert fast moving neutrons into thermal neutrons

  • 22. 
    The first metal used by man was
    • A. 

      Iron

    • B. 

      Copper

    • C. 

      Gold

    • D. 

      Bronze

  • 23. 
    The hydronium ion is
    • A. 

      H+

    • B. 

      HO -

    • C. 

      H2+

    • D. 

      H3O+

  • 24. 
    The most electropositive elements among the following is
    • A. 

      Na

    • B. 

      Ca

    • C. 

      K

    • D. 

      Cs

  • 25. 
    The method that cannot be used for removing permanent hardness of water is
    • A. 

      Adding sodium carbonate

    • B. 

      Distillation

    • C. 

      Adding caustic soda

    • D. 

      Boiling

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