NUST NET SAMPLE CHEMISTRY QUESTIONS

National University of Sciences and Technology NUST is one of the top rated engineering universities of Pakistan and also very well known around the world. NUST NET-1 registrations are open until 18th of December 2018, NUST NET-1 entry test will be conducted on 28th December 2018 on words. Due to quality of education and facilities provided to students NUST fee structure is a bit high as compared to other universities but they also provide many scholarships to their students including need based scholarship. NUST also provide a vast range of Undergraduate Programs for applicants other than engineering. Eligibility criteria to apply for NUST is only 60% in FSc. Competition is very tough at NUST, so applicants must be fully prepared if they want to secure their admission.

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TOPIC

Gases, Liquids & Solids

QUESTION

Which of the following properties is anisotropic?

OPTIONS

  1. Melting Point
  2. Density
  3. Electrical Conductivity
  4. Geometrical Shape

CORRECT OPTIONS

Electrical Conductivity

EXPLANATION

Physical properties that depend on the direction are called anisotropic properties. The physical properties of crystalline solids like refractive index, coefficient of thermal expansion, electrical and thermal conductivity, and cleavage plane are anisotropic in nature.

TOPIC

Solutions

QUESTION

If we have 450g of a NaCL solution that is 35 NaCL w/w %. What is the mass of NaCL?

OPTIONS

  1. 128.5 g
  2. 157.5 g
  3. 184.5 g
  4. 200 g

 

CORRECT OPTIONS

157.5 g

EXPLANATION

% by weight = (Mass of solute/Mass of solution) * 100

35 = (X/450) *100

X = 35 * 450/100 = 157.5 g

TOPIC

Reaction Kinetics

QUESTION

What is the half-life of a third order reaction if k = 1 and a = 0.2 M?

OPTIONS

  1. 5 s
  2. 5 s
  3. 25 s
  4. 5 s

CORRECT OPTIONS

37.5 s

EXPLANATION

[t1/2] = 1.5/ka2;

Putting values [t1/2] = 1.5/(0.2)2 = 37.5 s.

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