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Chemistry 1488 MCQs [All-Courses]

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Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

Conversion of reactant into product in unit time is called________________?

A rate of forward reaction

B rate of backward reaction

C rate constant

D rate co-efficient

Review Detailed Answer

Correct Answer: rate of forward reaction

Reaction which proceeds in both directions is called_______________?

A reversible

B irreversible

C spontaneous

D non-spontaneous

Review Detailed Answer

Correct Answer: reversible

Which one of the following aqueous solutions will be basic ?

A NaCI

B Na2SO4

C Na2CO3

D FeCl3

Review Detailed Answer

Correct Answer: Na2CO3

For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?

A Kc is generally greaer than Kp

B Kc is generally less than Kp

C Kc is generally equal to Kp

D Kc is equal to Kp if the total moles of reactants and products are equal

Review Detailed Answer

Correct Answer: Kc is equal to Kp if the total moles of reactants and products are equal

Which of the following will not change the concentration of ammonia at the equilibrium ?

A Increase of pressure

B Increase of volume

C Addition of catalyst

D Decrease of temperature

Review Detailed Answer

Correct Answer: Addition of catalyst

AgCl dissolved with conc (2×10-2) Ksp will be__________________?

A 3.6 x 10-6

B 3.6 x 10-5

C 7.2 x 10-6

D 4 x 10-4

Review Detailed Answer

Correct Answer: 4 x 10-4

If a buffer solution of higher pH than seven is to be made we use___________________?

A Strong acid and strong base

B Weak acid and strong base

C Weak acid and strong base

D Weak acid and its salt with strong base

Review Detailed Answer

Correct Answer: Weak acid and its salt with strong base

The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?

A 3

B 2.7

C 2

D 1.5

Review Detailed Answer

Correct Answer: 2.7

The gases become non-ideal at ________________?

A High temperature and high pressure

B Low temperature and low pressure

C High temperature and low pressure

D Low temperature and high pressure

Review Detailed Answer

Correct Answer: Low temperature and high pressure

Who made volume and pressure correction to explain deviation of gases from ideal behaviour ?

A Clausius

B Boltzman

C Charles

D Vander waal

Review Detailed Answer

Correct Answer: Vander waal

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Chemistry 1488 MCQs [All-Courses]

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All Topics 1488

Conversion of reactant into product in unit time is called________________?

Reaction which proceeds in both directions is called_______________?

Which one of the following aqueous solutions will be basic ?

For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ?

Which of the following will not change the concentration of ammonia at the equilibrium ?

AgCl dissolved with conc (2×10-2) Ksp will be__________________?

If a buffer solution of higher pH than seven is to be made we use___________________?

The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?

The gases become non-ideal at ________________?

Who made volume and pressure correction to explain deviation of gases from ideal behaviour ?