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Chemistry 1488 MCQs [All-Courses]

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Who used the term Concentrationwindow to draw the arbitrary lines of demarcation

A Einstein

B Dr.A.Walash

C Schwartz

D S.E.Manhan

Review Detailed Answer

Correct Answer: Schwartz

If heat is to be supplied continuously to a liquid at its boiling point, the temperature remains constant because:

A Extra heat is spread in the air

B High energy molecules continuously leaving the surface of liquid

C The forces of attractions become stronger

D The vapour pressure of the boiling liquid becomes greater than the external pressure

Review Detailed Answer

Correct Answer: High energy molecules continuously leaving the surface of liquid

Element that have same number of neutrons are called__________?

A isotope

B isobar

C isotone

D None of these

Review Detailed Answer

Correct Answer: isotone

The strongest hydrogen bonding is present in: _____________?

A Ammonia gas

B Ice

C Ethanol

D Acetone and chloroform

Review Detailed Answer

Correct Answer: Ice

Calculate % of N in KNO3__________?

A 14.34%

B 18.56%

C 13.86%

D None of these

Review Detailed Answer

Correct Answer: 13.86%

Ionic solids do not conduct the electrical current because:

A Ions don’t have translatory motion

B The coordination number of ion is very high

C Free electrons are less

D Strong covalent bonds are present in their structure

Review Detailed Answer

Correct Answer: Ions don’t have translatory motion

The pH of milk is_______?

A 9

B 6.5-7

C 8

D 12

Review Detailed Answer

Correct Answer: 6.5-7

Evaporation is_____________?

A Endothermic Reaction

B Surface Process

C Continuous Process

D All of these.

Review Detailed Answer

Correct Answer: All of these.

2-Butyne contains:______________?

A sp hybridised carbon atoms only

B sp3 hybridised carbon atoms only

C both sp and sp2 hybridised carbon atoms

D both sp and sp3 hybridised carbon atoms

Review Detailed Answer

Correct Answer: both sp and sp3 hybridised carbon atoms

The Boiling Point of Ethyl Alcohol is_________?

A 78°C

B 58°C

C 73°C

D 56°C

Review Detailed Answer

Correct Answer: 78°C

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Chemistry 1488 MCQs [All-Courses]

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All Topics 1488

Who used the term Concentrationwindow to draw the arbitrary lines of demarcation

If heat is to be supplied continuously to a liquid at its boiling point, the temperature remains constant because:

Element that have same number of neutrons are called__________?

The strongest hydrogen bonding is present in: _____________?

Calculate % of N in KNO3__________?

Ionic solids do not conduct the electrical current because:

The pH of milk is_______?

Evaporation is_____________?

2-Butyne contains:______________?

The Boiling Point of Ethyl Alcohol is_________?