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Test: Chemistry Mock Test - 1


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45 Questions MCQ Test NEET Mock Test Series | Test: Chemistry Mock Test - 1

Test: Chemistry Mock Test - 1 for NEET 2022 is part of NEET Mock Test Series preparation. The Test: Chemistry Mock Test - 1 questions and answers have been prepared according to the NEET exam syllabus.The Test: Chemistry Mock Test - 1 MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Chemistry Mock Test - 1 below.
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Test: Chemistry Mock Test - 1 - Question 1

An organic compound X give a red precipitate on heating with Fehling's solution. Which one of the following reactions yields X as a major product?

Test: Chemistry Mock Test - 1 - Question 2

Which of the following is soluble in yellow ammonium sulphide?

Detailed Solution for Test: Chemistry Mock Test - 1 - Question 2 SnS + (NH4)2S +S ---> (NH4)2SnS3here (NH4)2S is yellow ammonium sulphide . so it is soluble in yellow ammonium sulphide.
Test: Chemistry Mock Test - 1 - Question 3

Benzene is used in the preparation of

Test: Chemistry Mock Test - 1 - Question 4

The spectrum of helium is expected to be similar to that of

Test: Chemistry Mock Test - 1 - Question 5
A mixture of sand and iodine can be separated by
Test: Chemistry Mock Test - 1 - Question 6
Which of the following statement is false?
Test: Chemistry Mock Test - 1 - Question 7

The bond angle around O in ice is closer to

Test: Chemistry Mock Test - 1 - Question 8
For the reaction of mole of zinc dust with one mole of sulphric acid in a bomb calorimeter ,∆U and w correspond to
Test: Chemistry Mock Test - 1 - Question 9
In a reversible reaction, the catalyst
Test: Chemistry Mock Test - 1 - Question 10
Consider the chemical reaction, N₂(g) + 3H₂(g) → 2NH₃(g). The rate of this reaction can be expressed in terms of time derivative of concentration of N₂(g), H₂(g)or NH₃(g). Identify the correct relationship among the rate expressions.
Test: Chemistry Mock Test - 1 - Question 11
A particular reaction has a negative value for the free energy change. Then at ordinary temperature
Test: Chemistry Mock Test - 1 - Question 12
Paracetamol is/are
Test: Chemistry Mock Test - 1 - Question 13
The IUPAC name of the compound having the molecular formula Cl₃C-CH₂CHO is
Test: Chemistry Mock Test - 1 - Question 14
The first ionisation potentials of four consecutive elements, present in the second period of the periodic table are 8.3, 11.3, 14.5 and 13.6 eV respectively. Which one of the following is the first ionisation potential (in eV) of nitrogen?
Detailed Solution for Test: Chemistry Mock Test - 1 - Question 14 As N has extra stable half-filled electronic configuration (1s2 2s2 2p3) , therefore it is difficult to remove an electron from nitrogen and ionisation potential of N is higher.
Test: Chemistry Mock Test - 1 - Question 15

Which of the following is expected to be a paramagnetic complex?

Test: Chemistry Mock Test - 1 - Question 16
In the Lanthanide series basic strength of hydroxides of the elements
Test: Chemistry Mock Test - 1 - Question 17
The best conductor of electricity is a 0.1 M solution of
Test: Chemistry Mock Test - 1 - Question 18

The solubility in water of sulphates down the Be group is
Be>Mg>Ca>Sr>Ba. This is due to

Test: Chemistry Mock Test - 1 - Question 19
How many litres of O₂ at STP are needed to complete the combustion of 39 g of liquid benzene as per equation given below ? 2C₆H₆(l)+15O₂(g)→12CO₂(g)+6H₂O(g)
Detailed Solution for Test: Chemistry Mock Test - 1 - Question 19 2×78g of benzene requires 15×22.4lit of oxygen.



39g of benzene requires= (39×15×22.4) / (2×78)=84litres.
Test: Chemistry Mock Test - 1 - Question 20

An alkali metal (M) forms ion of the general formula

Test: Chemistry Mock Test - 1 - Question 21
Which of the following reaction will not give anhydrous AlCl₃?
Test: Chemistry Mock Test - 1 - Question 22
Percentage of lead in lead pencil is
Test: Chemistry Mock Test - 1 - Question 23
When aluminium phosphide is treated with dil. sulphuric acid
Test: Chemistry Mock Test - 1 - Question 24
Acidified solutions of sodium thiosulphate are unstable because in thiosulphate
Test: Chemistry Mock Test - 1 - Question 25

Which of the following arrangment for the three halogens Cl, Br and I when placed in the order of their increasing electron afffinity is correct?

Detailed Solution for Test: Chemistry Mock Test - 1 - Question 25

Down the group, electron affinity decreases.(as with increase in size, tendency to hold electron decreases).

Test: Chemistry Mock Test - 1 - Question 26

Gypsum, CaSO₄.2H₂O on heating to about 120oC, forms plaster of paris which has chemical composition represented by

Test: Chemistry Mock Test - 1 - Question 27
A gas decolourises alkaline KMnO₄ solution but does not give precipitate with AgNO₃. It is
Test: Chemistry Mock Test - 1 - Question 28
D₂O is used in
Test: Chemistry Mock Test - 1 - Question 29
When HCl gas is passed through a saturated solution of common salt, pure NaCl is precipiated because
Test: Chemistry Mock Test - 1 - Question 30
An isomer of ethanol is:
Test: Chemistry Mock Test - 1 - Question 31
A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solution and on oxidation give a monocarboxylic acid B. A is obtained by the action of chlorine on ethyl alcohol. A is
Test: Chemistry Mock Test - 1 - Question 32

'Z' in the following sequence of reactions is

Test: Chemistry Mock Test - 1 - Question 33

Which of the following is not true in case of reaction with heated copper at 300oC?

Test: Chemistry Mock Test - 1 - Question 34

Which is not the resonance structure of aniline?

Test: Chemistry Mock Test - 1 - Question 35
The co-ordination number of copper in cuprammonium sulphate is
Detailed Solution for Test: Chemistry Mock Test - 1 - Question 35 Cu(NH3)4SO4 The coordination number is 4, because it is coordinated to 4 NH3 molecules (SO4 is just a counter ion, not coordinated).
Test: Chemistry Mock Test - 1 - Question 36

Which of the following is the correct order of atomic radii?

Detailed Solution for Test: Chemistry Mock Test - 1 - Question 36

Since the atomic radii increase down a group due to the addition of a new energy shell, therefore the atomic radii of Li, Na, K, Rb follow the sequence, Rb > K > Na > Li.

Test: Chemistry Mock Test - 1 - Question 37
Which of the following is an example of condensation polymer?
Test: Chemistry Mock Test - 1 - Question 38
Which of the following has molecular weight of 92?
Test: Chemistry Mock Test - 1 - Question 39
Which of the following has the same oxidation state as that of Cr in K₂CrO₃
Test: Chemistry Mock Test - 1 - Question 40
The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its co-ordination number is
Test: Chemistry Mock Test - 1 - Question 41

A 500 g tooth paste sample has 0.2 g fluoride concentration. What is the concentration of F in terms of PPm level ?

Detailed Solution for Test: Chemistry Mock Test - 1 - Question 41

PPM or Parts Per Million is expressed as 1 milligram of substance per kilogram of parent substance

 

Since, mass of toothpaste=500 g=0.5 kg, and

Mass of fluoride ion=0.2 g=200 mg

 

0.5 kg toothpaste contains 200 mg fluoride ions, 

1 kg toothpaste will contain 200×2=400 mg fluoride ions

 

Hence, concentration of fluoride ion is 400 ppm

Test: Chemistry Mock Test - 1 - Question 42
Which conformation for ethane has the lowest potential energy?
Test: Chemistry Mock Test - 1 - Question 43

The number of moles of AgCl precipitate when excess of AgNO₃ is added to one mole of [Cr(NH₃)₄ Cl₂] Cl is

Detailed Solution for Test: Chemistry Mock Test - 1 - Question 43

[Cr(NH3)4Cl2]Cl  ionises gives one Cl− ion. So it gives 1 mole AgCl ppt.

Test: Chemistry Mock Test - 1 - Question 44
Collodial solution of arsenious sulphide is prepared by
Test: Chemistry Mock Test - 1 - Question 45
Which are the constituents of gun metal?
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