Test: Chemistry Mock Test - 7
45 Questions MCQ Test NEET Mock Test Series | Test: Chemistry Mock Test - 7
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Which of the following hydrocarbons has the most acidic hydrogens
In which of the following solvents, AgBr will have the highest solubility?
Which one of the following compounds is prepared in the laboratory from benzene by substitution reaction?
For an ideal gas the relationship between internal energy change .(∆E) and enthalpy change(∆H)is
The rate of chemical reaction is doubled for every 10oC rise in temperature because of
The atomic radius of elements of which of these would be nearly same
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.
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)
An alkane forms isomers if minimum number of C-atom is :
For an alkane having isomers, the minimum no of carbon atoms is 4. This will give two isomers as n-butane and iso-butane.
Which of the following organometallic compound is σ and π bonds?
Which of the following compounds can react with the Lewis base Cl− in a Lewis acid-base reaction?
Li > Na > K > Rb.
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
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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