Chemical Reactions and equations

02 Chemical Reactions and equations

Which of the following is a displacement reaction?

which-of-the-following-is-a-displacement-reaction
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Which of the following is not a chemical change?

which-of-the-following-is-not-a-chemical-change
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When lead nitrate is heated a brown gas is evolved .This gas is

when-lead-nitrate-is-heated-a-brown-gas-is-evolved-this-gas-is
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A catalyst is a substance which

a-catalyst-is-a-substance-which
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Which of the following is an example of a neutralization reaction?

which-of-the-following-is-an-example-of-a-neutralization-reaction
Which one of the following is NOT an example of a decomposition reaction?

which-one-of-the-following-is-not-an-example-of-a-decomposition-reaction
An exothermic reaction is one which always

an-exothermic-reaction-is-one-which-always
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On burning magnesium in air, we get

on-burning-magnesium-in-air-we-get
Two immiscible liquid having difference in their densities can be separated by

two-immiscible-liquid-having-difference-in-their-densities-can-be-separated-by
Reaction in which heat energy is absorbed is called

reaction-in-which-heat-energy-is-absorbed-is-called
Reaction in which heat energy is released is called

reaction-in-which-heat-energy-is-released-is-called
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Water breaks into its constituent

water-breaks-into-its-constituent
A slow combustion in which glucose present in the body cells combine with oxygen to provide energy is

a-slow-combustion-in-which-glucose-present-in-the-body-cells-combine-with-oxygen-to-provide-energy-is
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The product formed when the white substance obtained by burning magnesium is dissolved in water is

the-product-formed-when-the-white-substance-obtained-by-burning-magnesium-is-dissolved-in-water-is
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Which of the following is(are) an endothermic process(s)? (i) Dilution of sulphuric acid (ii) Sublimation of dry ice (iii) Condensation of water vapours (iv) Evaporation of water

which-of-the-following-isare-an-endothermic-processs-i-dilution-of-sulphuric-acid-ii-sublimation-of-dry-ice-iii-condensation-of-water-vapours-iv-evaporation-of-water
The valency of phosphate ion is

the-valency-of-phosphate-ion-is
What are the products of electrolysis of a aqueous solution of sodium chloride using inert electrodes?

what-are-the-products-of-electrolysis-of-a-aqueous-solution-of-sodium-chloride-using-inert-electrodes
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When a sample of copper (II) carbonate was heated in a hard glass test tube, a gas 'A' was evolved which turned lime water milky and a black residue 'B' was left in the test tube. When 'B' was dissolved in warm dilute sulphuric acid, a blue solution 'C' was obtained. The correct identification of A, B and C is given by

when-a-sample-of-copper-ii-carbonate-was-heated-in-a-hard-glass-test-tube-a-gas-a-was-evolved-which-turned-lime-water-milky-and-a-black-residue-b-was-left-in-the-test-tube-when-b-was-dissolved-in-warm-dilute-sulphuric-acid-a-blue-solution-c-was-obtained-the-correct-identification-of-a-b-and-c-is-given-by
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Given the following three observations of the reactions of four metals (i) Metal 0 will displace metal N from its chloride (ii) Only metal L reacts with cold water (iii) Metal N reacts faster with acid than metal M What is their reactivity order, from the most reactive to least reactive?

given-the-following-three-observations-of-the-reactions-of-four-metals-i-metal-0-will-displace-metal-n-from-its-chloride-ii-only-metal-l-reacts-with-cold-water-iii-metal-n-reacts-faster-with-acid-than-metal-m-what-is-their-reactivity-order-from-the-most-reactive-to-least-reactive
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The process of reduction involves

the-process-of-reduction-involves
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Which of the following statement is correct?

which-of-the-following-statement-is-correct
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In which of the following chemical equation, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?

in-which-of-the-following-chemical-equation-the-abbreviations-represent-the-correct-states-of-the-reactants-and-products-involved-at-reaction-temperature
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Which among the following statement(s) is(are) true? Exposure of silver chloride to sunlight for a long duration turns grey due to (i) Formation of silver by decomposition of silver chloride (ii) Sublimation of silver chloride (iii) Decomposition of chlorine gas from silver chloride (iv) Oxidation of silver chloride

which-among-the-following-statements-isare-true-exposure-of-silver-chloride-to-sunlight-for-a-long-duration-turns-grey-due-to-i-formation-of-silver-by-decomposition-of-silver-chloride-ii-sublimation-of-silver-chloride-iii-decomposition-of-chlorine-gas-from-silver-chloride-iv-oxidation-of-silver-chloride
An element X forms an oxide XO3. What is the valency of X?

an-element-x-forms-an-oxide-xo3-what-is-the-valency-of-x
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A redox reaction is one in which

a-redox-reaction-is-one-in-which
Which of the following statements is false for oxidation reaction?

which-of-the-following-statements-is-false-for-oxidation-reaction
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Which of following statements is/are true?

which-of-following-statements-isare-true

Chemical Reactions and equations

Which of the following is a displacement reaction?

which-of-the-following-is-a-displacement-reaction

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Which of the following is not a chemical change?

which-of-the-following-is-not-a-chemical-change

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When lead nitrate is heated a brown gas is evolved .This gas is

when-lead-nitrate-is-heated-a-brown-gas-is-evolved-this-gas-is

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A catalyst is a substance which

a-catalyst-is-a-substance-which

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Which of the following is an example of a neutralization reaction?

which-of-the-following-is-an-example-of-a-neutralization-reaction

Which one of the following is NOT an example of a decomposition reaction?

which-one-of-the-following-is-not-an-example-of-a-decomposition-reaction

An exothermic reaction is one which always

an-exothermic-reaction-is-one-which-always

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On burning magnesium in air, we get

on-burning-magnesium-in-air-we-get

Two immiscible liquid having difference in their densities can be separated by

two-immiscible-liquid-having-difference-in-their-densities-can-be-separated-by

Reaction in which heat energy is absorbed is called

reaction-in-which-heat-energy-is-absorbed-is-called

Reaction in which heat energy is released is called

reaction-in-which-heat-energy-is-released-is-called

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Water breaks into its constituent

water-breaks-into-its-constituent

A slow combustion in which glucose present in the body cells combine with oxygen to provide energy is

a-slow-combustion-in-which-glucose-present-in-the-body-cells-combine-with-oxygen-to-provide-energy-is

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The product formed when the white substance obtained by burning magnesium is dissolved in water is

the-product-formed-when-the-white-substance-obtained-by-burning-magnesium-is-dissolved-in-water-is

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Which of the following is(are) an endothermic process(s)? (i) Dilution of sulphuric acid (ii) Sublimation of dry ice (iii) Condensation of water vapours (iv) Evaporation of water

which-of-the-following-isare-an-endothermic-processs-i-dilution-of-sulphuric-acid-ii-sublimation-of-dry-ice-iii-condensation-of-water-vapours-iv-evaporation-of-water

The valency of phosphate ion is

the-valency-of-phosphate-ion-is

What are the products of electrolysis of a aqueous solution of sodium chloride using inert electrodes?

what-are-the-products-of-electrolysis-of-a-aqueous-solution-of-sodium-chloride-using-inert-electrodes

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Given the following three observations of the reactions of four metals (i) Metal 0 will displace metal N from its chloride (ii) Only metal L reacts with cold water (iii) Metal N reacts faster with acid than metal M What is their reactivity order, from the most reactive to least reactive?

given-the-following-three-observations-of-the-reactions-of-four-metals-i-metal-0-will-displace-metal-n-from-its-chloride-ii-only-metal-l-reacts-with-cold-water-iii-metal-n-reacts-faster-with-acid-than-metal-m-what-is-their-reactivity-order-from-the-most-reactive-to-least-reactive

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The process of reduction involves

the-process-of-reduction-involves

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Which of the following statement is correct?

which-of-the-following-statement-is-correct

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