CBSE Class 12 Tamil Question Paper 2017 with Answer Key (March 18)

CBSE CLASS XII Questions

• 1.

  Write the name of basic building units of proteins and nucleic acids. How can you differentiate between Fibrous and Globular proteins on the basis of their structures ?

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• 2.

  A magnet held vertically, with its north pole down, is dropped along the axis of a closed solenoid placed vertically on a table. If the observer looks down from the top,

  • the induced current will flow in the anticlockwise direction.
  • the induced current will flow in the clockwise direction.
  • no induced current will flow in the solenoid.
  • the magnet will fall with a constant velocity.
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• 3.

  Anuj, Divij and Shilpa were partners in a firm sharing profits and losses in the ratio of 2:1:2. Their Balance Sheet as at 31st March, 2023 was as follows:

  Balance Sheet of Anuj, Divij and Shilpa as at 31st March, 2023

  Liabilities	Amount (Rs)	Assets	Amount (Rs)
  Capitals:		Land & Building	8,00,000
  Anuj 3,00,000		Furniture	2,40,000
  Divij 4,00,000		Stock	1,20,000
  Shilpa 5,00,000	12,00,000	Debtors	1,70,000
  Bills Payable	60,000	Cash	50,000
  Creditors	1,20,000
  	13,80,000		13,80,000

  Anuj retired on the above date on the following terms:

  (i) Anuj's share of goodwill was valued at Rs 90,000 and the same was to be treated without opening goodwill account.

  (ii) Revaluation of assets and reassessment of liabilities resulted in a gain of Rs 25,000.

  (iii) Amount due to Anuj was transferred to his loan account, to be paid in two equal yearly instalments plus interest @ 12% p.a. on the unpaid balance starting from 31st March, 2024.

  Prepare Partners' Capital Accounts and Anuj's Loan Account till it is fully discharged.

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• 4.

  You are Dr. Ria Sen, a renowned environmentalist. You have received an invitation to speak at an inter-school conclave on ‘Climate change – the Role of Youth’. Draft a reply consenting to attend the event.

  (Write in about 50 words.)

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• 5.

  An electron is revolving around a proton in a circular orbit of radius $r$. Using classical physics, prove that the ratio of value of the angular momentum and the value of magnetic moment of electron revolving in the orbit is a constant.

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• 6.

  (i) How does a farmer use dormancy of seed to his advantage ?

  (ii) Differentiate between pea seed and castor seed.

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