Chemistry OT-1

Beschreibung

this online test contains 10 question based on SSC Exam.
Dinesh Singh
Quiz von Dinesh Singh, aktualisiert more than 1 year ago
Dinesh Singh
Erstellt von Dinesh Singh vor mehr als 9 Jahre
9
0

Zusammenfassung der Ressource

Frage 1

Frage
The chemical used as a ‘fixer’ in photography
Antworten
  • Sodium sulphate
  • Sodium thiosulphate
  • Ammonium sulphate
  • Borax

Frage 2

Frage
Which of the following is the correct sequence of the wavelength of radiation
Antworten
  • UV > Green > IR > Hard X-rays
  • IR > Green > UV > Hard X-rays
  • UV > Hard X-rays > IR > Green
  • IR > Hard X-ray > Green > UV

Frage 3

Frage
Which of the following fertilizer has the maximum % of nitrogen
Antworten
  • Ammonium sulphate
  • Urea
  • Calcium cyanamide
  • Calcium ammonium nitrate

Frage 4

Frage
Which of the following is not contains in Portland cement
Antworten
  • Ca3Al2O6
  • Ca3SiO5
  • Ca2Sio4
  • Ca3(PO4)2

Frage 5

Frage
Which one of the following acid is used for etching glass
Antworten
  • H2SO4
  • HNO3
  • HF
  • HCl

Frage 6

Frage
Nuclear fusion requires very temperatures so as to overcome
Antworten
  • Van der waal’s forces
  • Nuclear force
  • Gravitational force
  • Coulomb force

Frage 7

Frage
What is the colour of oxygen in solid state
Antworten
  • Pale yellow
  • Pale blue
  • Light green
  • Greenish yellow

Frage 8

Frage
In surgery, metal pins are used for joining together broken bones. the metal pins remains uncorroded in the body. What is the material of the pins
Antworten
  • Copper
  • Iron
  • Aluminium
  • Titanium

Frage 9

Frage
H2o is liquid and H2S is a gas because
Antworten
  • Oxygen forms stronger hydrogen bond than sulphur
  • Oxygen is less electronegative than sulphur
  • Atomic radius of oxygen is less than that of sulphur
  • Atomic radius of oxygen is greater than that of sulphur

Frage 10

Frage
In chemical terms, what are the alums used for purifying water for drinking purpose
Antworten
  • Hydrated chlorides
  • Double nitrate
  • Double sulphate
  • Nitrates of aluminium
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