Indicators

Descrição

Chemistry Quiz sobre Indicators, criado por asthanarang em 21-07-2015.
asthanarang
Quiz por asthanarang, atualizado more than 1 year ago
asthanarang
Criado por asthanarang mais de 9 anos atrás
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Resumo de Recurso

Questão 1

Questão
Tasting is the best way to identify if a solution is acidic or basic.
Responda
  • True
  • False

Questão 2

Questão
In neutral solution, litmus is ________ in colour.
Responda
  • Red
  • Blue
  • Purple
  • Green

Questão 3

Questão
Which of the following can be used as acid-base indicators? Select all correct options
Responda
  • Safranin
  • Bromthymol blue
  • Methyl orange
  • Methylene blue

Questão 4

Questão
Onion and vanilla are ___________.
Responda
  • Acids
  • Bases
  • Visual indicators
  • Olfactory indicators

Questão 5

Questão
Which indicator is pink in alkaline solution?
Responda
  • Phenolphthalein
  • Litmus
  • Methyl orange
  • Safranin

Questão 6

Questão
Lichens are symbiotic relatonships between:
Responda
  • Protozoa and fungi
  • Algae and fungi
  • Algae and protozoa
  • Bacteria and fungi

Questão 7

Questão
Which of tbe following can be used as visual indicators?
Responda
  • Turmeric, clove oil and red cabbage
  • Red cabbage, petals of Geranium and vanilla extract
  • Petals of Geranium, red cabbage and turmeric
  • Green cabbage, turmeric and clove oil

Questão 8

Questão
The characteristic smell of onion disappears when _________ is added to it.
Responda
  • Tartaric acid
  • Ammonium hydroxide
  • Phenolphthalein
  • Vegetable oil

Questão 9

Questão
A dark blue colour on pH paper indicates that the test solution is basic in nature.
Responda
  • True
  • False

Questão 10

Questão
What will be the colour of litmus solution when it is tested with detergent solution?
Responda
  • Red
  • Blue
  • Purple
  • Depends on the brand of the detergent

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