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Test: Chemistry Mock Test - 7


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45 Questions MCQ Test NEET Mock Test Series | Test: Chemistry Mock Test - 7

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Test: Chemistry Mock Test - 7 - Question 1

Which of the following hydrocarbons has the most acidic hydrogens

Test: Chemistry Mock Test - 7 - Question 2

In which of the following solvents, AgBr will have the highest solubility?

Test: Chemistry Mock Test - 7 - Question 3

Which one of the following compounds is prepared in the laboratory from benzene by substitution reaction?

Test: Chemistry Mock Test - 7 - Question 4
An electron is moving in Bohr's fourth orbit. Its de Broglie wavelength is λ. What is the circumference of the fourth orbit?
Test: Chemistry Mock Test - 7 - Question 5
The units nanometer, fermi, angstrom and attometre arranged in decreasing order
Test: Chemistry Mock Test - 7 - Question 6
When glucose reacts with bromine water, the main product is
Test: Chemistry Mock Test - 7 - Question 7
Which of the following arrangement of molecules is correct on the basis of their dipole moments?
Test: Chemistry Mock Test - 7 - Question 8

For an ideal gas the relationship between internal energy change .(∆E) and enthalpy change(∆H)is

Detailed Solution for Test: Chemistry Mock Test - 7 - Question 8 Its Delta H=Delta E+ Delta(P×V) so option A  is correct.
Test: Chemistry Mock Test - 7 - Question 9
when a catalyst is added to a reversible reaction in equilibrium state, the value of equilibrium constant
Test: Chemistry Mock Test - 7 - Question 10

The rate of chemical reaction is doubled for every 10oC rise in temperature because of

Test: Chemistry Mock Test - 7 - Question 11
Internal energy of a substance/system is a
Test: Chemistry Mock Test - 7 - Question 12
Amoxillin is semi-synthetic modification of
Test: Chemistry Mock Test - 7 - Question 13
How many isomers (including stereisomers )could be obtained by replacing one hydrogen of propene with chlorine ?
Test: Chemistry Mock Test - 7 - Question 14

The atomic radius of elements of which of these would be nearly same

Detailed Solution for Test: Chemistry Mock Test - 7 - Question 14

The atomic radii of the d- block elements of a given series decrease with increase in atomic number but this decrease becomes small after midway. The decrease in atomic radii in the beginning, is due to an increase in nuclear charge from member to member which tends to reduce the size. At the same time, the addition of extra electrons to (n-1)d orbitals also provides the screening effect. As the number of d-electrons increases, the screening effect increases. Thus, there are operating two effects namely screening effect and nuclear charge effect which oppose each other. In the midway onwards of the series both these effects become nearly equal and thus, there is no change in atomic radii inspite of the fact that atomic number increases gradually.

Test: Chemistry Mock Test - 7 - Question 15
Ce-58 is a member of
Test: Chemistry Mock Test - 7 - Question 16

Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?
(At. No. : Cr = 24, Mn = 25, Fe = 26, Co = 27)

Test: Chemistry Mock Test - 7 - Question 17
In alkaline medium ClO₂ oxidises H₂O₂ to O₂ and itself gets reduced to Cl⁻.How many moles of H₂O₂ are oxidised by 1 mole of ClO₂ ?
Test: Chemistry Mock Test - 7 - Question 18
Which among the following metals belong to the same group of the periodic table?
Test: Chemistry Mock Test - 7 - Question 19
Pressure cooker reduces cooking time because
Test: Chemistry Mock Test - 7 - Question 20
The metal extracted by electrolysis of its fused salt is
Test: Chemistry Mock Test - 7 - Question 21
The chief ore of a aluminium is
Test: Chemistry Mock Test - 7 - Question 22
The components present in producer gas are
Test: Chemistry Mock Test - 7 - Question 23
When excess of water is added to BiCl₃ solution
Test: Chemistry Mock Test - 7 - Question 24
The chemical reaction between Na₂S₂O₃ and I₂ in aq. medium produces
Test: Chemistry Mock Test - 7 - Question 25
Bleaching powder is obtained by the action of chlorine gas and
Test: Chemistry Mock Test - 7 - Question 26
Blanc fixe used in paints is
Test: Chemistry Mock Test - 7 - Question 27
In Wurtz reaction the reagent used is
Test: Chemistry Mock Test - 7 - Question 28

Hardness of water is due to which pair of ions ?

Test: Chemistry Mock Test - 7 - Question 29
A white salt is readily soluble in water and gives a colourless solutions with a pH of about 9.The salt would be
Test: Chemistry Mock Test - 7 - Question 30

An alkane forms isomers if minimum number of C-atom is :

Detailed Solution for Test: Chemistry Mock Test - 7 - Question 30

For an alkane having isomers, the minimum no of carbon atoms is 4. This will give two isomers as n-butane and iso-butane.

Test: Chemistry Mock Test - 7 - Question 31
Grignard reagent is not prepared in aqueous medium but prepared in ether medium, because
Test: Chemistry Mock Test - 7 - Question 32
What is formed,when (CH₃)₄N.OH is heated ?
Test: Chemistry Mock Test - 7 - Question 33
Which of the following is the strongest acid?
Test: Chemistry Mock Test - 7 - Question 34

Which of the following organometallic compound is σ and π bonds?

Test: Chemistry Mock Test - 7 - Question 35

Which of the following compounds can react with the Lewis base Cl in a Lewis acid-base reaction?

Test: Chemistry Mock Test - 7 - Question 36
The highest electronegative element is
Detailed Solution for Test: Chemistry Mock Test - 7 - Question 36 The electronegativity values for the elements decrease down a group. This is because as we move down the group atomic radius as well as screening effect increases. Thus, the force of attraction with which the nucleus pulls the valence electrons towards itself decreases and consequently the electronegativity values also decrease. The electronegativity values for alkali metals follows the order:
Li > Na > K > Rb.
Test: Chemistry Mock Test - 7 - Question 37
Caprolactam polymerises to give
Test: Chemistry Mock Test - 7 - Question 38

On combustion, 0.2g of an organic compound containing carbon, hydrogen and oxygen yields 0.147 g carbon dioxide and 0.12 g water. The percentage of carbon, hydrogen and oxygen respectively in the compound are

Detailed Solution for Test: Chemistry Mock Test - 7 - Question 38

Test: Chemistry Mock Test - 7 - Question 39

Oxidation number of S in S₂O₃2⁻ is

Test: Chemistry Mock Test - 7 - Question 40
Potassium crystallizes with a
Test: Chemistry Mock Test - 7 - Question 41
Which of the following is a colligative property ?
Test: Chemistry Mock Test - 7 - Question 42
The optical isomerism is shown by :
Test: Chemistry Mock Test - 7 - Question 43
A balanced chemical reaction is in accordance with
Test: Chemistry Mock Test - 7 - Question 44
Gold number gives
Test: Chemistry Mock Test - 7 - Question 45

Which of the following is paramagnetic ?

Detailed Solution for Test: Chemistry Mock Test - 7 - Question 45

Cl- is a weak field ligand and it does not cause the pairing of unpaired 3d electrons. Hence, [NiCl4]2- is paramagnetic.

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