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HSC Science (Computer Science) 12th Standard Board Exam - Maharashtra State Board Important Questions

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Derive integrated rate law for a zero-order reaction \[\ce{A -> Product}\].

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Chapter: [6] Chemical Kinetics
Concept: Zero Order Reactions

Identify the molecularity of following elementary reaction:

NO(g) + O3(g) → NO3(g) + O(g)

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Chapter: [6] Chemical Kinetics
Concept: Molecularity of Elementary Reactions

Obtain the expression for half-life and rate constant of the first-order reaction.

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Chapter: [6] Chemical Kinetics
Concept: Integrated Rate Equations

Define the half-life of a first-order reaction.

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Chapter: [6] Chemical Kinetics
Concept: Integrated Rate Equations

Which of the following correctly represents integrated rate law equation for a first order reaction in a gas phase?

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Chapter: [6] Chemical Kinetics
Concept: Integrated Rate Equations

Derive integrated rate law for zero order reaction.

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Chapter: [6] Chemical Kinetics
Concept: Zero Order Reactions

What is the rate constant?

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Chapter: [6] Chemical Kinetics
Concept: First Order Reactions

If unit of rate constant is mol dm−3s1, the order of reaction would be ______.

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Chapter: [6] Chemical Kinetics
Concept: Zero Order Reactions

For the reaction A + B → P.

If [B] is doubled at constant [A], the rate of reaction doubled. If [A] is triple and [B] is doubled, the rate of reaction increases by a factor of 6. Calculate the rate law equation.

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Chapter: [6] Chemical Kinetics
Concept: Rate of Reaction and Reactant Concentration

The half-life period for the first order reaction is 1.7 hrs. How long will it take for 20% of the reactant to disappear?

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Chapter: [6] Chemical Kinetics
Concept: Integrated Rate Equations

Describe anomalous behaviour of oxygen as compared with other elements of group 16 with reference to -
(a) Magnetic property                                        
(b) Oxidation state
(c) Hydrides

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 16 Elements >> Anomalous Behaviour of Oxygen

Describe anomalous behaviour of fluorine with the other elements of group 17 wilh reference to :

(a) Hydrogen bonding

(b) Oxidation state

(c) Polyhalide ions

 

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Anomalous Behaviour of Fluorine

Arrange the following oxyacids of chlorine – HClO, HClO2, HClO3, and HClO4 with respect to Increasing order of thermal stability.

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What happens when thin copper leaves are thrown in jar containing chlorine?

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What is the action of chlorine (Cl) on the following:

Cold and dilute caustic soda

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What is the action of chlorine (Cl) on the following:

Hot and concentrated caustic soda

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

What is the action of chlorine (Cl) on the following:

Potassium bromide solution

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

Write electronic configuration and two uses of neon. (Z = 10)

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements

Arrange the following oxyacids of chlorine - HClO, HClO2, HClO3, and HClO4 with respect to increasing order of oxidizing power.

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine

Write any two uses of Chlorine.

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Chapter: [7] Elements of Groups 16, 17 and 18
Concept: P - Block Group 17 Elements >> Chlorine
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