NTSE SAT Chemistry Papers 06

NTSE SAT Chemistry Papers 06

This is NTSE SAT Chemistry Papers 06 .. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Which of the following is a \({\beta ^ + }\)emitter:
  • A
    \({}_{82}^{208}Pb\)
  • B
    \({}_{20}^{49}Ca\)
  • C
    \({}_5^8B\)
    Correct
  • D
    \({}_{36}^{94}Kr\)
2
Dry ice is an example of _______________ process.
  • A
    Crystallization
  • B
    Purification
  • C
    Sublimation
    Correct
  • D
    Evaporation
3
Solubility of \(KN{O_3}\):
  • A
    Increases with temperature
    Correct
  • B
    Is not related to the temperature fluctuations
  • C
    Remains constant with temperature
  • D
    Decreases with temperature
4
______________ are alloys of Iron, Aluminium, Nickel and Cobalt
  • A
    Brass
  • B
    Alnicos
    Correct
  • C
    Solder
  • D
    Bronze
5
______________ exists as a dimer
  • A
    \(M{g^{2 + }}\)
  • B
    \(C{u^{2 + }}\)
  • C
    \(C{a^{2 + }}\)
  • D
    \(Hg_2^{2 + }\)
    Correct
6
The phenomenon of producing a characteristic sound when a material is struck on the metallic surface is ______________.
  • A
    Ductility
  • B
    Sonority
    Correct
  • C
    Conductivity
  • D
    Malleability
7
Copper reacts with dilute nitric acid and liberates ________________.
  • A
    Nitric oxide
    Correct
  • B
    Nitrous oxide
  • C
    Nitrogen pentoxide
  • D
    Nitrogen dioxide
8
The pH of 0.1 M NaOH is:
  • A
    13
    Correct
  • B
    12
  • C
    10
  • D
    11
9
Identify the type of reaction taking place in \(Fe + CuS{O_4} \to Cu + FeS{O_4}\)
  • A
    Displacement reaction
  • B
    Neutralization reaction
  • C
    Precipitation reaction
  • D
    Redox reaction
    Correct
10
The constituent present in baking powder is:
  • A
    Tartaric acid
    Correct
  • B
    Acetic acid
  • C
    Sodium benzoate
  • D
    Sodium lactate
11
Which metal is a constituent of hemoglobin?
  • A
    Zn
  • B
    Co
  • C
    Fe
    Correct
  • D
    Ca
12
The example for non-biodegradable pollutant is no-biodegradable is
  • A
    Sewage
  • B
    Sulphur-di-oxide
  • C
    Lead vapours
    Correct
  • D
    Corrugated carboard
13
The material which does not have fixed melting point is
  • A
    Plastic
  • B
    Glass
    Correct
  • C
    Caramics
  • D
    Metals
14
The type of glass used in the manufacture of lenses is
  • A
    Soda-lime glass
  • B
    Borosilicate glass
  • C
    Lead glass
    Correct
  • D
    Potash lime type glass
15
The action of syringe is an example of
  • A
    Charle's law
  • B
    Boyle's law
  • C
    Graham's law
  • D
    Diffusion
    Correct