CHEMISTRY-IN-EVERYDAY-LIFE-QUIZ-6

CHEMISTRY IN EVERYDAY LIFE QUIZ-6

Dear Readers,

The one subject in NEET which is candidates who can easily attain good marks is Chemistry. That's the reason, often, one doesn’t pay notice and choose to compromise it. But if one wants to rank above others, the tip is to be thorough with NEET chemistry concepts. The understanding of reactions and definite basic understanding is what requires major attention in Chemistry but once done it only gets simpler from there. The main focus on the to-do list should be on getting a hang of the NCERT syllabus of NEET chemistry.

Q1. Which of the following is used in rocket propellants?

•  H₂ (l)
•  O₂(l)
•  N₂ H₄ (l)
•  All of these

Solution

Q2.Which of the following sets of reactants is used for preparation of paracetamol from phenol?

•  HNO₃,H₂/Pd,(CH₃ CO)₂ O
•  H₂ SO₄,H₂/Pd,(CH₃ CO)₂ O
•  C₆ H₅ N₂ Cl,SnCl₂/HCl,(CH₃ CO)₂ O
•  Br₂/H₂ O,Zn/HCl,(CH₃ CO)₂ O

Solution

Q3.  The rose odour from an ester is formed by the action of HCOOH on:

•  Pine oil
•  Olive Oil
•  Geraniol
•  Turpentine oil

Solution
(c) C₁₀ H₁₇ OH (Geraniol) a liquid terpene alcohol forms ester of rose odour with HCOOH.

Q4. A synthetic detergent is a

•  Cleansing agent
•  Drug
•  Catalyst
•  Soap

Solution

Q5.Which of the following does not behave as a surfactant? ?

•  soap
•  Detergent
•  Phospholipid
•  Triglycerides

Solution
 

Q6. Arsenic drugs are mainly used in the treatment of:

•  Jaundice
•  Typhoid
• Syphilis
•  Cholera

Solution

Q7.Pick out the statement which is not true?

•  Tetrazine is harmful edible colour.
•  Alitame is an artificial sweetner.
•  BHT is an antioxidant.
•  Sodium alkyl sulphate is a cationic detergent.

Solution
(d) Sodium alkyl sulphate is an anionic detergent as it gives anion which acts as surfactant. RCH₂—SO₃ Na ⟶RCH₂—SO₃^- +Na⁺ Sodiumalkyl anionic part sulphate

Q8.An azo dye is fixed on fabrics by the process applicable in:

•  Vat dyes
•  Mordant dyes
•  Developed dyes
•  Substantive dyes

Solution
(c) Ingrain or developed dyes are those which are synthesised directly on the fabric, e.g., azo dyes. Ingrain dyeing is particularly suitable for cotton fabric.

Q9.The following structure represents

•  Sucrose
•  Sucralose
•  Aspartame
•  Alitame

Solution

Q10. The insecticide containing 99% γ-isomer of benzene hexachloride is known as:

•  Lindane
•  TNT
•  Malathion
• Methoxychlor

Solution