An excess of AgNO₃ is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium (III) chloride. The number of moles of AgCl precipitate would be

• 0.001

• 0.002

• 0.003

• 0.003

KMnO₄ can be prepared from K₂MnO₄ as per reaction

The reaction can go to completion by removing OH^- ions by adding

• HCl

• KOH

• CO₂

• CO₂

Which of the following statements about the interstitial compounds is incorrect?

• They retain metallic conductivity

• They are chemically reactive

• They are much harder than the pure metal

• They are much harder than the pure metal

Which one of the following molecules contains no pi -bond?

• CO₂

• H₂O

• SO₂

• SO₂

Which of the following is a polar molecule?

• BF₃

• SF₄

• SiF₄

• SiF₄

36.

The reaction by which benzaldehyde cannot be prepared? 

•  +CrO₂Cl₂ and CS₂ followed by H₃O⁺
•  +H₂ in presence of anhydrous AlCl₃.
•  +CO +HCl in presence of anhydrous AlCl₃
•  +CO +HCl in presence of anhydrous AlCl₃

Which of these is not a monomer for high molecular mass silicone polymer?

• MeSiCl₃

• Me₂SiCl₂

• Me₃SiCl

• Me₃SiCl

Antiseptics and disinfectants either kill or prevent the growth of microorganisms. Identify which of the following is not true.

• A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant

• Chlorine and iodine are used as strong disinfectants

• Dilute solutions of boric acid and hydrogen, peroxide are strong antiseptics

• Dilute solutions of boric acid and hydrogen, peroxide are strong antiseptics

Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI?

Nylon  is an example of 

• Polyester

• Polysaccharide

• polyamide

• polyamide