CBSE Class 12 Troubleshooting And Maintenance Of Electronic Equipments Question Paper 2019 with Answer Key (February 22)

CBSE CLASS XII Questions

• 1.

  Choose the incorrect pair of stain and its type.
  

  • Animal - Oil
    
  • Plant - Curry
    
  • Mineral - Rust
    
  • Dye - Paint
    
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• 2.

  Out of Mn\(^{2+}\) and Zn\(^{2+}\), which ion will be more paramagnetic and why? (Atomic numbers: Mn = 25, Zn = 30)

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• 3.

  The painting Hazrat Nizamuddin Auliya and Amir Khusro belongs to which sub-school of Deccan Miniature?

  • Golconda sub-school
    
  • Ahmednagar sub-school
    
  • Hyderabad sub-school
    
  • Bijapur sub-school
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• 4.

  The purpose of opening a Demat Account with a Depository Participant (DP) is :
  

  • For holding and transferring securities in the Demat form
    
  • For entering into an agreement with broker
    
  • For making payment to stock exchange for any purchase of securities
    
  • For enabling cash transactions in the securities market
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• 5.

  Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected ? Write its symptoms as well as karyotype.

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• 6.

  Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.

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