Tag Archives: NUST BS Physics program

SAMPLE NUST NET 2 CHEMISTRY QUESTIONS

ELECTROCHEMISTRY

QUESTION:

The oxidation of oxygen in peroxides is?

OPTIONS:

  • +1
  • -1
  • +2
  • -2

CORRECT OPTION:

-1

EXPLANATION:

Peroxides include hydrogen peroxide, H2O2. This is an electrically neutral compound and so the sum of the oxidation states of the hydrogen and oxygen must be zero.

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NUST NET 2 SAMPLE PHYSICS QUESTIONS

National University of Science and Technology NUST is top rated engineering university of Pakistan. NUST was founded in 1991 with an aim of providing quality education to the students. NUST grow up dramatically in a very little time period because of their focus towards quality education and dedication toward their work. NUST offer many undergraduate programs every year, NUST test is also considered to be one of the most difficult test in Pakistan. Due to their quality education, the fee is quite high but they facilitate poor and needy students through need base scholarship.

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Elements & Periodicity

QUESTION:

Which of the following has strongest basic character?

OPTIONS:

  • P2O3
  • Al2O3
  • MgO
  • Na2O3

CORRECT ANSWER:

Na2O3

EXPLANATION:

Basic character of oxides decrease within a period from left to right. All the given elements are in the period 2 and Na is the left most element of period 2.

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CURRENT ELECTRICITY

QUESTION:

What shunt resistance must be connected across a galvanometer of 50.0 ohm resistance which gives full scale deflection with 2.0MA current so as to convert it into an ammeter of range 10.0A?

OPTIONS:

  • 105Ω
  • 0.01Ω
  • 2.5 Ω
  • 3.9 Ω

CORRECT ANSWER:

0.01Ω

EXPLANATION:

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GASEOUS EXCHANGE

QUESTION:

In fish, gills surface is ventilated by constant flow of?

OPTIONS:

  • Oxygenated blood
  • Air
  • Water
  • Serum

CORRECT OPTION:

Water

EXPLANATION:

Marine species obtain oxygen dissolve in water so gills are constantly ventilated by water to oxygenate the blood.

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REACTION KINETICS

QUESTION:

Some reaction start very slow, but then gain speed and eventually become very fast. These reactions exhibit which phenomena?

OPTIONS:

  • Catalyst activation
  • Catalyst poisoning
  • Inhibition
  • Auto catalysis

CORRECT OPTION:

Auto catalysis

EXPLANATION:

In these reaction product formed acts as a catalyst. That is why they start very slow, but then gain speed (as the product catalyst is available) and eventually become very fast.

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INVERSE TRIGONOMETRIC FUNC

QUESTION:

Value of cos (tan-1 15/8 – sin-1 7/25) =?

OPTIONS:

  • 114/350
  • 297/425
  • 215/345
  • 138/147

CORRECT OPTION:

297/425

EXPLANATION:

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ELECTROSTATICS

QUESTION:

Find the work done in moving a charged particle of 3 micro columb from infinity to a distance of 0.04m to another charged particle of 5 micro columb?

OPTIONS:

  • 1.5 J
  • 2.6 J
  • 3.4 J
  • 4.8 J

CORRECT OPTION:

3.4 J

EXPLANATION:

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DIGESTION

QUESTION:

Trypsinogin is converted into trypsin by the activity of:

OPTIONS:

  • Goblet cells
  • Absorbtive cells
  • Enteropeptidase
  • Enterokinase

CORRECT OPTION:

Enteropeptidase

EXPLANATION:

Trypsinogen is the precursor form of the pancreatic enzyme trypsin. It is found in pancreatic juice, along with amylase, lipase and chymotrypsinogen. It is activated by enteropeptidase, which is found in the intestinal mucosa, to form trypsin. Once activated, the trypsin can activate more trypsinogen into trypsin. Trypsin cleaves the peptide bond on the carboxyl side of basic amino acids such as arginine and lysine.

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ELECTROCHEMISTRY

QUESTION:

The oxidation of oxygen in peroxides is?

OPTIONS:

  • +1
  • -1
  • +2
  • -2

CORRECT OPTION:

-1

EXPLANATION:

Peroxides include hydrogen peroxide, H2O2. This is an electrically neutral compound and so the sum of the oxidation states of the hydrogen and oxygen must be zero.

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