Indicators

Descripción

Chemistry Test sobre Indicators, creado por asthanarang el 21/07/2015.
asthanarang
Test por asthanarang, actualizado hace más de 1 año
asthanarang
Creado por asthanarang hace más de 9 años
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Resumen del Recurso

Pregunta 1

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

Pregunta 2

Pregunta
In neutral solution, litmus is ________ in colour.
Respuesta
  • Red
  • Blue
  • Purple
  • Green

Pregunta 3

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

Pregunta 4

Pregunta
Onion and vanilla are ___________.
Respuesta
  • Acids
  • Bases
  • Visual indicators
  • Olfactory indicators

Pregunta 5

Pregunta
Which indicator is pink in alkaline solution?
Respuesta
  • Phenolphthalein
  • Litmus
  • Methyl orange
  • Safranin

Pregunta 6

Pregunta
Lichens are symbiotic relatonships between:
Respuesta
  • Protozoa and fungi
  • Algae and fungi
  • Algae and protozoa
  • Bacteria and fungi

Pregunta 7

Pregunta
Which of tbe following can be used as visual indicators?
Respuesta
  • 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

Pregunta 8

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

Pregunta 9

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

Pregunta 10

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