Chemistry MCQs Online Quiz Test 8

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FPSC Past Papers Chemistry Entry Test MCQs

Q.1: The most paramagnetic element is———-?

  1. Iron
  2. Cobalt
  3. Chromium
  4. Manganese

A

Q.2: Which one of the following looks odd———?

  1. H2SO4
  2. KMnO4
  3. H2S
  4. K2CrO4

C

Q.3: In 1 – pentene -4- yne the carbon exhibit hybridization———?

  1. sp3 – sp2
  2. sp2 – sp
  3. sp2 – sp
  4. sp3 – sp2 – sp

D

Q.4: When benzene is heated in air with V2O5 at 450°C yields———?

  1. Phenol
  2. Maleic anhydride
  3. Glyoxal
  4. Benzoic acid

B

Q.5: Which one of the following will be sulphonated readily ?

  1. Chlorobenzene
  2. Toluene
  3. Nitrobenzene
  4. Benzene

B

Q.6: When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields——-?

  1. Carboxylic acid
  2. Ethanoic acid
  3. Propanoic acid
  4. Butanoic acid

C

Q.7: Ethy1 chloride on reduction in the presence of Zn/HCI produces———-?

  1. n. butane
  2. Ethanol
  3. Ethane
  4. Diethy1 ether

C

Q.8: For industrial preparation of CH3CHO catalytic promoter is———?

  1. PdCl2
  2. Cu2Cl2
  3. CuCl2
  4. PbCl2

B

Q.9: Which of the following is not a fatty acid ?

  1. Propanoic acid
  2. Acetic acid
  3. Phthalic acid
  4. Butanoic acid

C

Q.10: Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?

  1. Urea
  2. Calcium superphosphate
  3. Diammonium phosphate
  4. Potassium nitrate

B