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Maharashtra SSC (Class 10) Physics — practice by topic

Browse 52 questions across 4 Physics topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Physics topics

Calorimetry (35)Light and Sound (12)Light and Optics (4)Sound (1)

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Buckminsterfullerene is an allotropic form ofRead the answer and worked solution →Onion juice loses its smell in a:Read the answer and worked solution →Plaster of Paris is chemically:Read the answer and worked solution →Acid + active metal gives:Read the answer and worked solution →

Worked practice questions

Buckminsterfullerene is an allotropic form of

  1. phosphorus
  2. sulphur
  3. tin
  4. carbon
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Correct answer: D. carbon

This Carbon and its Compounds item tests a core Chemistry concept. Correct answer: carbon. _Source: syllabus Exemplar Science Class 10_

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Onion juice loses its smell in a:

  1. neutral solution
  2. basic solution
  3. acidic solution
  4. sugar solution
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Correct answer: B. basic solution

Onion is an olfactory indicator. Its sharp smell weakens in a basic solution (loss of smell signals base).

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Plaster of Paris is chemically:

  1. CaCO₃
  2. CaSO₄·½H₂O
  3. CaCl₂·2H₂O
  4. CaSO₄·2H₂O
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Correct answer: B. CaSO₄·½H₂O

Plaster of Paris is calcium sulfate hemihydrate, CaSO₄·½H₂O. The hemihydrate sets to gypsum (CaSO₄·2H₂O) on adding water.

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