GTSE Practice Test for Chemical Science for CSIR NET & SET Exams

Question 1

The correct order that describes the rate of exchange of water molecules between the coordination sphere and the bulk is

Question 2

The main reason behind the red color of oxyhemoglobin is due to

Question 3

The correct order of CO stretching frequency in the infrared spectra spectra of Anhydride, Amide and Ketone is

Question 4

The initial rate r₀ of a certain reaction depends on the initial concentration of species A, B and C as shown in the table. (Concentration in mM and r₀ in mM s^–1)

Predict the order of reaction.

Question 5

For a heteronuclear diatomic molecule, if the bond length is greater in the upper vibrational state, the gap between the successive absorption lines of P-branch will:

Question 6

Based on VSEPR theory, the structures of SbPh₅ and PPh₅ respectively are

Question 7

Hydrated Cd(II) complex can be replaced successively by Br^– finally in order to give [CdBr₄]^2-. In this process, it is observed that the fourth equilibrium constant is higher than the third one. The reason behind this is:

Question 8

The product(P) of the reaction is:

Question 9

A dilute solution of KCl was placed between two Pt electrode having a distance of 10.0 cm and a potential difference of 6.0 volt was applied. How much distance will be travelled by K⁺ ions in 2 hour at 25° C? ( Given: Ionic conductivity of K⁺ at infinite dilution is 73.52 S cm² eq^–1. at 25°C).

Question 10

The graph between

and log P gives a straight line with an angle of 45°. If pressure is 0.5 atm and log k = 0.699, calculate the amount of solute adsorbed per g of adsorbent.

Question 11

The major product formed in the reaction given below is:

Question 12

The number of signals observed in 13C NMR spectrum( broadband decoupled) of anthracene and ,phenanthrene respectively are

Question 13

The structure of Rh₆(CO)₁₆ according to polyhedral electron count rule is:

Question 14

Which of the following is a closo-carborane ?

Question 15

For a homogeneous catalytic reaction, 1.0 M of a substrate and 1.0 μM of a catalyst gives 1.0 mM of a product in 10 seconds. Calculate the turnover frequency (TOF) of the reaction (s^–1).

Question 16

The correct order of Bronsted acidity of boron hydrides is:

Question 17

The reaction of [Cp₂TaMe₂]I (Cp = C₅H₅) with NaOMe gives

Question 18

Three bands observed in the electronic spectrum of [Cr(NH₃)₆]³⁺ . This occurs due to:

(A) ⁴A_2g→ ⁴T₁_g

(B) ⁴A_2g→ ⁴T_2g

(C) ⁴A_2g→ ²E_g

Identify the correct statement about them.

Question 19

On treatment of the pentapeptide Gly-Arg-Phe-Ala-Ala, with the enzymes Trypsin, Chymotrypsin and Carboxypeptidase A respectively, gives:

Question 20

In which one of the following reactions, nitrogen is NOT reduced?

Question 21

By considering the quadrupolar nature of M-M bond in [Re₂Cl₈]^2–, calculate the M-M bond order of [Re₂ Cl₄(PMe₂Ph₄]⁺ and [Re₂Cl₄(PMe₂Ph₄)] respectively .

Question 22

Identify the element with the highest first IE?

Question 23

Question 24

Question 25

The crystal structures of CaO and NaCl are same and both have approximately the same ionic radii. If U is the lattice energy of NaCl, the approximate lattice energy of CaO is:

Question 26

If the ionisation enthalpy and electron gain enthalpy of an element, are 275 and 86 k-cal mol^–1 respectively, then calculate the electronegativity of the element using Mulliken scale.

Question 27

Polyphosphates are used as water softening agents because they:

Question 28

Bayer's process involves:

Question 29

Sodalite cafe in Zeolites is:

Question 30

The separation of trivalent lanthanide ions, Lu³⁺, Yb³⁺, Dy³⁺ Eu³⁺ can be carried out by a cation exchange resin using ammonia 0-hydroxy isobutyrate as the eluent. Among the options given below, which of the following order is correct?

Question 31

In the given pie-chart, what is the total expenditure (in percent) on labour charges?

Question 32

The sum of the squares of three consecutive natural numbers is 2030. Then, what is the middle numer?

Question 33

The average number of visitors in a zoo on Sundays is 500, whereas the average number on other days is 300. Assume that a month has 30 days and begins with a Monday. What is the approximate average number of the visitors in that month?

Question 34

The population of a town increases 2.5% annually but it is decreased by 0.5% every year due to migration. What will be the percentage of increase in 2 years?

Question 35

If 16 men or 20 women can do a piece of work in 25 days, in what time will 28 men and 15 women do it?

Question 36

What per cent decrease in salaries would exactly cancel out the 20% increase?

Question 37

Introducing a lady, a lady said, "She is the only daughter of Mohan's grandfather who is my husband's father". How does the lady relate herself with the introduced lady?

Question 38

The given pie-chart shows the numbers of tourists for the year 2015, traveling from India and to India.

In the given pie-chart. If 1657850 is the total number of tourists visiting India, how many visited from Australia:

Question 39

In the following question, select the related word from the given alternatives.

Medicine : Patient : : Education : ?

Question 40

Select the related letters from the given alternatives:

LAMP : IXJM :: FISH : ?