Chemistry In Everyday Life

14 Questions
  1. 1
    Triclosan', considered harmful when exposed to high levels for a long time, is most likely present in which of the following?
    UPSC CSE I - 2021
  2. 2
    Consider the following pairs :
    Commonly used / consumed materials Unwanted or controversial chemicals likely to be found in them
    1. Lipstick Lead
    2. Soft drinks Brominated vegetable oils
    3. Chinese fast food Monosodium glutamate
    Which of the pairs given above is/are correctly matched ?
    UPSC CSE I - 2017
  3. 3
    Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like other amino acids. Yet, it is used as a low-calorie sweetening agent in food items. What is the basis of this use ?
    UPSC CSE I - 2011
  4. 4

    The purpose of adding sodium sulphate and sodium silicate to the detergent in a washing powder is

    1. to keep the washing powder dry.
    2. to maintain the alkalinity of the powder.

    Which of these statements is/are correct?

    UPSC CSE I - 2003
  5. 5

    Assertion: Synthetic detergents can lather well in hard water.
    Reason (R): Synthetic detergents form soluble calcium and magnesium salts with hard water.

    UPSC CSE I - 2002
  6. 6

    A small pouch containing silica gel is often found in bottles of medicine in tablet or powder form because silica gel

    UPSC CSE I - 2000
  7. 7

    Soft drinks such as colas contain significant quantities of

    UPSC CSE I - 2000
  8. 8

    Assertion (A): Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. Reason (R): Ammonia can be liquified at ambient temperatures at low pressures.

    UPSC CSE I - 2000
  9. 9

    Consider the following statements: Hard water is not suitable for

    1. drinking.
    2. washing clothes with soap.
    3. use in boilers.
    4. irrigating crops.

    Which of these statements are correct?

    UPSC CSE I - 2000
  10. 10

    Most of the explosions in mines occur due to the mixing of

    UPSC CSE I - 2000
  11. 11

    Match List-I (Drugs/Chemicals) with List -II (Their uses) and select the correct answer using the codes given below

    List-I List-II
    A. Atropine 1. Local anaesthesia
    B. Ether 2. Heart trouble
    C. Nitro-glycerine 3. Dilation of pupil.
    D. Pyrethrin 4. Mosquito control

    Codes:
    ABCD

    UPSC CSE I - 1999
  12. 12

    Assertion (a): Phenyl is used as a household germicide.
    Reason (R): Phenyl is phenol derivative and phenol is an effective germicide.

    UPSC CSE I - 1998
  13. 13

    Which one of the following is an active component of oil of clove?

    UPSC CSE I - 1997
  14. 14

    The offending substance in the liquor tragedies leading to blindness etc. is

    UPSC CSE I - 1996