Your Target is to secure Good Rank in IIT-JEE - 2020

Important Instructions:

(1) There is only one correct option.

(2) Duration of Test is 1 Hour and Questions Paper Contains 30 Questions. The Max. Marks are 120.

(3) Each correct answer carries 4 marks, while 1 mark will be deducted for every wrong answer. Guessing of answer reduces your effort. 

1 / 30

The major product expected from the following reaction is :

2 / 30

(A) n = 5, ml = + 1
(B) n = 2, l =1, ml = –1, ms = –l/2
The maximum number of electron(s) in an atom
that can have the quantum numbers as given in
(A) and (B) are respectively:

3 / 30

Statement-1 : Amines are basic in nature.
Statement-2 : Presence of lone pair of electron on nitrogen atom

4 / 30

Among the reactions given below for B2H6, the one which does not take place is

5 / 30

Copper crystallises in fcc with a unit length of 361pm. What is the radius of copper atom ?

6 / 30

A reaction is found to be second order w.r.t. one of the reactants & has rate constant of 0.5 mol–1 dm3 min–1. If initial concentration is 0.2 mol dm–3 then t1/2 of reaction is

7 / 30

Which of the following ions are optically active?

8 / 30

Potassium permanganate acts as an oxidant in neutral, alkaline as well as acidic media. The final products obtained from it in the three conditions are, respectively

9 / 30

The rate of SN1 reaction is fastest in the hydrolysis of which of the following halides ?

10 / 30

11 / 30

12 / 30

Two elements A & B form compounds having molecular formulae AB2 and AB4. When dissolved in 20.0 g of benzene 1.00g of AB2 lowers f.p. by 2.30C whereas 1.00g of AB4 lowers f.p. by 1.30C. The molal depression constant for benzene in 1000g is 5.1. The atomic masses of A and B are

13 / 30

A metal gives two chlorides A and B. A gives black precipitate with NH4OH and B gives white. With KI, B gives a red precipitate soluble in excess of KI. A and B are respectively

14 / 30

The correct sequence of decreasing number of π-bonds in the structures of H2SO3, H2SO4 and H2S2Ois :

15 / 30

The number of π electrons present in 6.4 g of calcium carbide is – (NA = Avagadro’s number)

16 / 30

A 1.0 M solution with respect to each of the metal halides AX3 , BX2 , CX3 and DX2 is electrolysed using platinum electrodes. If E°A3+/A  = 1.50 V, E°B2+/B  = 0.3V , E°C3+/C  = – 0. 74 V, E°D2+/D  = – 2.37 V.The correct sequence in which the various metals are deposited at the cathode is

17 / 30

An element (atomic mass =100 g/mol) having bcc structure has unit cell edge 400pm. The density (in g/cm3) of the element is

18 / 30

Allyl phenyl ether can be prepared by heating:

19 / 30

An ideal gas undergoes isothermal expansion at constant pressure. During the process :

20 / 30

In which reaction, there is change in oxidation number of N

21 / 30

The pair of compounds having metals in their highest oxidation state is:

22 / 30

The standard reduction potential of Li+/Li, Ba2+/Ba, Na+/Na and Mg2+/Mg are –3.05, –2.73, –2.71 and –2.37 volts respectively. Which one of the following is strongest oxidising agent?

23 / 30

Concentration of NH4Cl and NH4OH in a buffer solution is in the ratio of 1 : 1, Kb for NH4OH is 10–10. The pH of the buffer is

24 / 30

Aluminothermy used for on the spot welding of large iron structure is based on the fact that-

25 / 30

An organic compound ‘X’ on ozonolysis followed by reduction with Zn/H2O gives 2 moles

26 / 30

In which of the following arrangements, the sequence is not strictly according to the property written against it?

27 / 30

Consider a 0.1M solution of two solutes A and B. A behaves as a non-electrolyte while 80% of B dimerises. Which of the following statement is correct regarding these solutions?

28 / 30

An organic compound A (C4H10O) has two enantiomeric forms and on dehydration it gives B(major product) and C (minor product). B and C are treated with HBr/ Peroxide and the compounds so produced were subjected to alkaline hydrolysis then-

29 / 30

Which of the following shows the tendency to form peroxide?

30 / 30

To detect iodine in presence of bromine, the sodium extract is treated with NaNO2 + glacial acetic acid + CCl4. Iodine is detected by the appearance of

Your score is

The average score is 28%


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