Chemical Equilibrium NEET Questions. We covered all the Chemical Equilibrium NEET Questions in this post for free so that you can practice well for the exam.
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MCQ on Chemical Equilibrium for NEET Students
On an industrial scale, H₂O₂ can be prepared by auto-oxidation of ………
(A) 1-Ethylanthraquinol
(B) 2-Ethylanthraquinol
(C) 1-Ethylanthraquinone
(D) 2-Ethylanthraquinone
Option b – 2-Ethylanthraquinol
Which of the following statements is CORRECT? (I) Micelle formation by soap in an aqueous solution occurs at all concentrations. (II) Micelle formation by soap in an aqueous solution is possible only above a particular temperature. When soap solution is diluted, micelles (III) revert to individual ions.
(A) (I) and (II)
(B) (II) and (III)
(C) (I) and (III)
(D) (I), (II) and (III)
Option b – (II) and (III)
The class of hydride to which HF, KH, and CrH belong are …….. respectively.
(A) molecular, saline, and metallic hydrides
(B) saline, molecular and metallic hydrides
(C) molecular, metallic, and saline hydrides
(D) metallic, saline, and molecular hydrides
Option a – molecular, saline, and metallic hydrides
The number of sigma and pi bonds in the following structure are …….. respectively. (CN)₂C=C(CN)₂
(A) 5,9
(B) 13,4
(C) 9,9
(D) 9,5
Option c – 9,9
Which of the following will NOT produce dihydrogen gas?
(A) Zinc + Dilute hydrochloric acid
(B) Sodium + Water
(C) Zinc + Aqueous sodium hydroxide solution
(D) Silicon tetrachloride + Water
Option d – Silicon tetrachloride + Water
Which of the following is INCORRECT?
(A) A molecule with square planar geometry will have a bond angle of 90°.
(B) An increase in the s-character of hybrid orbitals increases the bond angle.
(C) The formation of an HF molecule involves an s-s sigma bond.
(D) The extent of orbital overlap decides the strength of a covalent bond.
Option c – The formation of an HF molecule involves an s-s sigma bond.
What is the similarity between the following three colloids? Butter, Jellies, Cheese
(A) The physical state of the dispersion medium is solid.
(B) The physical state of the dispersed phase is gas.
(C) They belong to the same type of colloidal system (that is, emulsion).
(D) The physical states of both the dispersed phase and the dispersion medium are solids.
Option a – The physical state of the dispersion medium is solid.
Which of the following is INCORRECT?
(A) Dihydrogen is relatively inert at room temperature due to very low H-H bond dissociation enthalpy.
(B) Hydrogen peroxide is used in the pollution control treatment of industrial and domestic effluents.
(C) There is extensive intermolecular hydrogen bonding in the condensed phase of water.
(D) Heavy water is used in the preparation of other deuterium compounds.
Option a – Dihydrogen is relatively inert at room temperature due to very low H-H bond dissociation enthalpy.
The number of moles of water required to completely hydrolyze 5 moles of magnesium nitride is ………
(A) 30
(B) 40
(C) 50
(D) 60
Option a – 30
……… has maximum covalent character.
(A) NaCl
(B) SiCl4
(C) AICI3
(D) MgCl₂
Option b – SiCl4
Assertion: For the adsorption of a gas on the surface of a solid, AS is positive. Reason: When a gas is adsorbed on the surface of a solid, the freedom of movement of its molecules becomes restricted.
(A) Assertion and Reason are true. The reason is the correct explanation of the Assertion.
(B) Assertion and Reason are true. The reason is not the correct explanation of the Assertion.
(C) The assertion is true, and the Reason is false.
(D) The assertion is false, Reason is true.
Option d – The assertion is false, Reason is true.
Which of the following is CORRECT?
(A) Dihydrogen is oxidized by sodium to form sodium hydride.
(B) Dihydrogen is obtained by electrolysis of acidified water using platinum electrodes.
(C) Dihydrogen reacts with iodine even in dark to form hydrogen iodide.
(D) Dihydrogen reduces bromine to form hydrogen bromide.
Option b – Dihydrogen is obtained by electrolysis of acidified water using platinum electrodes.
Identify the INCORRECT statement.
(A) Hybridization involving 3s, 3p, and 3d is possible.
(B) Hybridization involving 3d, 4s, and 4p is possible.
(C) Hybridization involving 3p, 3d, and 4s is possible.
(D) The hybridization involving 2s and 2p is possible.
Option c – Hybridization involving 3p, 3d, and 4s is possible.
Which of the following species has a linear structure?
(A) SO₂
(B) NO₂
(C) BeF₂
(D) H₂S
Option c – BeF₂
Which of the following electrolytes will have the maximum coagulating value for the coagulation of Agl/Ag sol?
(A) Na₂S
(B) Na3PO4
(C) Na2SO4
(D) NaCl
Option d – NaCl
The chemical formula of Calgon is ……….
(A) Na3P6O18
(B) Nа6P3018
(C) Nа6P6012
(D) Nа6P6018
Option d – Nа6P6018
Identify the INCORRECT statement.
(A) BF3 is a nonpolar compound while NF3 is a polar compound.
(B) BF3 is trigonal planar while NF3 is trigonal pyramidal in shape.
(C) BF3 is a covalent compound while NF3 is an ionic compound.
(D) BF3 has no lone pair of electrons on the central atom while NF3 has a lone pair of electrons on the central atom.
Option c – BF3 is a covalent compound while NF3 is an ionic compound.
Permanent hardness of water CANNOT is removed by …….
(A) ion-exchange method
(B) Calgon’s method
(C) treating it with sodium carbonate
(D) Clark’s method
Option d – Clark’s method
Select the INCORRECT match.
(A) Methylene blue sol → Negatively charged sol
(B) Gold sol → Negatively charged sol
(C) Gelatine sol → Negatively charged sol
(D) Eosin sol → Negatively charged sol
Option a – Methylene blue sol → Negatively charged sol
Which of the following molecules has different bond lengths?
(A) AIF3
(B) NF3
(C) CIF3
(D) BF3
Option c – CIF3
Reaction (I): Sucrose → Glucose and fructose Reaction (II): Glucose → Ethyl alcohol and carbon dioxide The enzymes that catalyze reaction (I) and reaction (II) are ……… respectively.
(A) diastase and pepsin
(B) zymase and maltase
(C) invertase and diastase
(D) invertase and zymase
Option d – invertase and zymase
Which of the following is a polar molecule?
(A) CH4
(B) SiF4
(C) SF4
(D) CCl4
Option c – SF4
The volume strength of 2.0 N H₂O₂ solution is ……… liters.
(A) 5.6
(B) 0.56
(C) 11.2
(D) 20.0
Option c – 11.2
Lyophobic colloids ……….
(A) are irreversible colloids
(B) are more stable than lyophilic colloids
(C) have a higher viscosity than the dispersion medium
(D) can be easily formed by direct mixing of the constituents
Option a – are irreversible colloids
Process (I): Water vapor + Silica gel Process (II): Water vapor + Anhydrous calcium chloride The CORRECT statement regarding the above processes is :
(A) Both processes involve absorption and water is uniformly distributed throughout the bulk of the solid.
(B) Process (I) involves absorption while process (II) involves adsorption.
(C) In process (I), the water molecules get adsorbed on the surface of silica gel.
(D) In process (II), the water molecules get adsorbed on the surface of anhydrous calcium chloride.
Option c – In process (I), the water molecules get adsorbed on the surface of silica gel.
N₂ and O₂ are converted into N₂ and 0₂ respectively. Which of the following statements is INCORRECT?
(A) In the conversion of N₂ to N₂ ion, the N-N bond weakens.
(B) In the conversion of O₂ to O₂ ion, the 0-0 bond order decreases.
(C) In the conversion of O₂ to O₂ ion, the O-O bond length increases.
(D) In the conversion of N₂ to N₂ ion, the N-N bond length decreases.
Option d – In the conversion of N₂ to N₂ ion, the N-N bond length decreases
In a laboratory, a sample of hydrogen peroxide was labeled as 100 volume. This means ………
(A) 1000 mL of this solution will give 1 L of oxygen at STP
(B) 1 L of this solution will give 1 L of oxygen at STP
(C) 10 L of this solution will give 100 L of oxygen at STP
(D) 1 mL of this solution will give 100 mL of oxygen at STP
Option d – 1 mL of this solution will give 100 mL of oxygen at STP
…….. is an example of hydrophobic sol.
(A) Starch sol
(B) Gold sol
(C) Gelatine sol
(D) Gum sol
Option b – Gold sol
In which of the following, both the dispersed phase and the dispersion medium are in the same physical state?
(A) Emulsion
(B) Aerosol
(C) Gel
(D) Foam
Option a – Emulsion
Which of the following contains a maximum number of lone pairs of electrons on the central atom? ( Chemical Equilibrium NEET Questions )
(A) CIO3
(B) XeF4
(C) SF4
(D) I3
Option d – I3
Hair cream and whipped cream are examples of colloids. In hair cream, the dispersed phase is ………. whereas, in whipped cream, the dispersed phase is ……….
(A) gas; liquid
(B) liquid; gas
(C) liquid; solid
(D) solid : gas
Option b – liquid; gas
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