Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

NEET Chemistry Solved Question Paper 2009

Short Answer Type

41.

Calculate the number of H⁺ions present in 1 mL of a solution whose pH is 10.

42.
Write with a balanced chemical equation how gypsum is used for the conversion of ammonia into ammonium sulnate without using H₂SO₄ ?

When NH₃ and CO₂ are directly introduced into a gypsum slurry, ammonium sulphate is obtained. This method is called continental engineering process.

$2 {NH}_{3} + {CaSO}_{4} \cdot 2 H_{2} O + {CO}_{2} \to ({NH}_{4})_{2} {SO}_{4} + {CaCO}_{3} gypsum$

CaCO₃ is the byproduct of the reaction.

43.

Give the structure of pyrphyuric acid. How would you prepare it? What would you observe when colourless HI is added to pyrphuric acid ?

44.

Convert phenol to p-hyroxy acetophenone in not more than 2 steps.

45.

An organic compound 'A' on treatment with ammoniacal silver nitrate gives metallic silver and produces a yellow crystalline precipitate of molecular formula C₉H₁₀N₄O₄ on treatment with Brady's reagent. Give the structure of the organic compound 'A'.