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5 Years Ago

Which Of The Following Is Not A Combination Reaction?

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In The Double Displacement Reaction Between Aqueous Potassium And Aqueous Lead Nitrate, A Yellow Precipitate Of Lead Iodide Is Formed.

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The Following Reaction Is Used For The Preparation Of Oxygen Gas In The Laboratory

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In Which Of The Following Chemical Equations, The Abbreviations Represent The Correct States Of The Reactants And Products Involved At Reaction Temperature?

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You Are Provided With Two Containers Made Up Of Copper And Aluminium.

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There Are Different Types Of Chemical Reactions Occuring Around Us Or Being Carried Out For The Benefit Of Mankind,

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Define Rancidity. What Kind Of Substances Are Used To Prevent Rancidity?

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(i) Identify The Type Of Reactions Taking Place In Each Of The Following Cases And Write The Balanced Chemical Equations For The Reactions (ii) What Happens When Hydrogen Gas Is Passed Over The Heated

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Identify The Type Of Chemical Reaction Taking Place In Each Of The Following

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Assertion : Photosynthesis Is Considered As An Endothermic Reaction. Reason : Energy Gets Released In The Process Of Photosynthesis.

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Assertion : Quicklime Reacts Vigorously With Water Releasing A Large Amount Of Heat Reason The Above Chemical Reaction Is An Exothermic Reaction

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Assertion : In The Following Chemical Equation, CuO(s) + Zn (s) -> ZnO(s) + Cu(s) Reason : The Process In Which Oxygen Is Added To A Substance Is Called Oxidation

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Assertion : Fe2O3 + 2AL -> Al2O3 + 2Fe Reason : Aluminium Being More Reactive Than Iron, Displaces Fe From Its Oxide

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Assertion : The Following Chemical Reaction, Reason : In A Balanced Chemical Equation

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(i) Give An Example For A Combination Reaction Which Is Exothermic (ii) Identify The Oxidising Agent (iii) Name The Phenomenon Due To Which The Taste And Smell Of

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Consider The Following Three Equations

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(i) Why Iron Corrodes But Aluminium Does Not? (ii) Write Chemical Name And The Formula Of The Brown Gas (iii) What Is The General Name Of The Chemicals Which Are Added To Fat

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A Metal X Acquires A Green Colour Coating On Its Surface On Exposure To Air.

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State Reason For The Following.

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On Adding A Drop Of Barium Chloride Solution To An Aqueous Solution Of Sodium Sulphite, White Precipitate Is Obtained.

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A Housewife Wanted Her House To Be White Washed. She Bought 10kg Of Quicklime From The Market And Dissolved In 30 L Of Water.

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When Solutions Of Silver Nitrate And Sodium Chloride Are Mixed, A White Precipitate Forms

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On Heating Blue Coloured Powder Of Copper (||) Nitrate In A Boiling Tube

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(i) Classify The Following Reactions Into Different Types. (ii) Which Of The Above Reaction(s) Is/are Precipitation Reaction(s) ? Why Is It So Called?

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State The Type Of Chemical Reactions With Chemical Equations That Take Place In The Following

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What Is A Reduction Reaction? Identify The Substances That Are Oxidised And The Substances That Are Reduced In The Following Reactions:

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Study The Reactions Given Below: Which Of The Following Chemical Reactions Will Occur.

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Write A Balance Chemical Equation For Each Of The Following Reactions And Also Classify Them

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What Happens When A Piece Of

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Decomposition Reactions Require Energy Either In The Form Of Heat Or Light Or Electricity For Breaking Down The Reactants

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Which Of The Following Is Not A Combination Reaction?

In The Double Displacement Reaction Between Aqueous Potassium And Aqueous Lead Nitrate, A Yellow Precipitate Of Lead Iodide Is Formed.

The Following Reaction Is Used For The Preparation Of Oxygen Gas In The Laboratory

In Which Of The Following Chemical Equations, The Abbreviations Represent The Correct States Of The Reactants And Products Involved At Reaction Temperature?

You Are Provided With Two Containers Made Up Of Copper And Aluminium.

There Are Different Types Of Chemical Reactions Occuring Around Us Or Being Carried Out For The Benefit Of Mankind,

Define Rancidity. What Kind Of Substances Are Used To Prevent Rancidity?

(i) Identify The Type Of Reactions Taking Place In Each Of The Following Cases And Write The Balanced Chemical Equations For The Reactions (ii) What Happens When Hydrogen Gas Is Passed Over The Heated

Identify The Type Of Chemical Reaction Taking Place In Each Of The Following

Assertion : Photosynthesis Is Considered As An Endothermic Reaction. Reason : Energy Gets Released In The Process Of Photosynthesis.

Assertion : Quicklime Reacts Vigorously With Water Releasing A Large Amount Of Heat Reason The Above Chemical Reaction Is An Exothermic Reaction

Assertion : In The Following Chemical Equation, CuO(s) + Zn (s) -> ZnO(s) + Cu(s) Reason : The Process In Which Oxygen Is Added To A Substance Is Called Oxidation

Assertion : Fe2O3 + 2AL -> Al2O3 + 2Fe Reason : Aluminium Being More Reactive Than Iron, Displaces Fe From Its Oxide

Assertion : The Following Chemical Reaction, Reason : In A Balanced Chemical Equation

(i) Give An Example For A Combination Reaction Which Is Exothermic (ii) Identify The Oxidising Agent (iii) Name The Phenomenon Due To Which The Taste And Smell Of

Consider The Following Three Equations

(i) Why Iron Corrodes But Aluminium Does Not? (ii) Write Chemical Name And The Formula Of The Brown Gas (iii) What Is The General Name Of The Chemicals Which Are Added To Fat

A Metal X Acquires A Green Colour Coating On Its Surface On Exposure To Air.

State Reason For The Following.

On Adding A Drop Of Barium Chloride Solution To An Aqueous Solution Of Sodium Sulphite, White Precipitate Is Obtained.

A Housewife Wanted Her House To Be White Washed. She Bought 10kg Of Quicklime From The Market And Dissolved In 30 L Of Water.

When Solutions Of Silver Nitrate And Sodium Chloride Are Mixed, A White Precipitate Forms

On Heating Blue Coloured Powder Of Copper (||) Nitrate In A Boiling Tube

(i) Classify The Following Reactions Into Different Types. (ii) Which Of The Above Reaction(s) Is/are Precipitation Reaction(s) ? Why Is It So Called?

State The Type Of Chemical Reactions With Chemical Equations That Take Place In The Following

What Is A Reduction Reaction? Identify The Substances That Are Oxidised And The Substances That Are Reduced In The Following Reactions:

Study The Reactions Given Below: Which Of The Following Chemical Reactions Will Occur.

Write A Balance Chemical Equation For Each Of The Following Reactions And Also Classify Them

What Happens When A Piece Of

Decomposition Reactions Require Energy Either In The Form Of Heat Or Light Or Electricity For Breaking Down The Reactants

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