ECAT Pre Engineering Chemistry Chapter 4 MCQ Test With Answer

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ECAT Chemistry Chapter 4 Important MCQ's

Sr.#	Question	Answer
1	The molecules of CO_{2 in dry ice from the :}	A. Ionic crystals B. Coverlet crystals C. Molecular crystals D. Any type of crystals
2	Force of attraction between atoms of He is	A. London dispersion forces B. Hydrogen bondign C. Coordinate covalent bond D. Covalent bond
3	Trend of boiling point of halogens from fluorine to Iodine is that it	A. Decreases B. Is negligible C. Increases D. Remains constant
4	Ionic solids are characterized by :	A. Low meeting points B. Good conductivity in solid state C. High vapor pressure D. Solubility in polar solvents
5	Which of the following liquids has low vapour pressure at 25⁰C	A. Diethyl ether B. Acetone C. Water D. Ethyl alochol
6	At sea level and at 100⁰C the vapour pressure of water in an open system is	A. 1000 mm Hg B. 760 mm Hg C. 730 mm Hg D. 670 mm Hg
7	Hydrogen bonding is present in one of the following pairs:	A. NH₃ B. H₂O C. HF D. All of above
8	The boiling point of NH₃is maximum among the hydrides of group V elements due to	A. Enhanced electronegative character of Nitrogen B. Pyramidal structure of NH₃ C. Very small size of Nitrogen D. Enhanced electropositive character of Nitrogen
9	The strongest forces are	A. Debye forces B. London dispersion forces C. Dipole-dipole attraction D. Hydrogen
10	London dispersion forces are alos called:	A. Hydrogen bonding. B. Debye forces C. Van der Waal's forces D. Instantaneous dipole-induced dipole forces.

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ECAT Pre Engineering Chemistry Chapter 4 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 4 Liquids & Solids

ECAT Chemistry Chapter 4 Liquids & Solids

The gases can be converted into liquids by

Which of the following is a pseudo solid?

Evaporation of water is possible at

Amorphous solids

Diamond is a bad conductor because

Chloroform and acetone are soluble in each other due to

Polypeptide chains are coiled about one another into a spiral by

The inter-molecular forces in liquids are:

The density of water decreases, when it is freezed at 0oC because of

Heat of vapourization for liquids with strong dipole-dipole forces will have

Which of the following liquids has low vapor pressure at 25°C:

London dispersion forces are also called:

Which one of the following is the weakest intermolecular force

H2S is a gas which H2O is liquid at room temperature. it is due to

London dispersion forces are alos called:

Which of the following is a pseudo solid

Ionic solids are characterized by :

Hydrogen bonding is present between the molecules of

HF has exceptionally low acidic strengths due to

The density of water decreases, When it is freezed at 0°C

A liquid on evaporation causes:

The molecules of CO2 in dry ice from the :

Hydrocarbon molecule with large chain lengths experience:

Which of the following liquids has low vapour pressure at 25°C:

Debye forces are present in one of the following pairs

The only forces are London dispersion forces among the

Ionic Solids are characterized by

Rate of evaporation and rate of condensation at equilibrium

Rate of evaporation and rate of condensation at equilibrium:

The boiling point of NH3 is maximum among the hydrides of group V elementsdue to:

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Top Scorers Of ECAT Chemistry Chapter 4 Liquids & Solids MCQ`s Test

ECAT Chemistry Chapter 4 Important MCQ's

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The density of water decreases, when it is freezed at 0^oC because of

H₂S is a gas which H₂O is liquid at room temperature. it is due to

The molecules of CO_{2 in dry ice from the :}

The boiling point of NH_{3 is maximum among the hydrides of group V elementsdue to:}