Class 10 Chemistry Grand MCQs Tests

By dehydration, we mean the removal of:

Hydrogen is added to Propene according to the following equation:
\(C{ H }_{ 3 }CH={ CH }_{ 2 }+{ H }_{ 2 }\rightarrow { 200-300^{ O }C } { CH }_{ 3 }-{ CH }_{ 2 }-{ CH }_{ 3 }\)
Which of the following catalysts is used for this reaction?

Which of the following is the chemical formula of Gypsum?

Raffinose (\({ C }_{ 18 }{ H }_{ 32 }{ O }_{ 16 }\)) is a:

Formic acid contains functional group:

Which of the following reacts explosively with methane?

_________ is used to make liquid soap and shaving cream.

Chalcopyrite is the ore of:

Lowest temperature in stratosphere is:

Which of the following is a water soluble vitamin?

Which of the following is the functional group of amine?

Compound of _________ helps to ensure antiseptic conditions in hospitals operating rooms.

____________ causes breathing difficulties, asthma and eye irritation.

Which of the following reaction will not have any units for 𝐾𝑐?

Which of the following catalysts is used to form NH₃ gas from Nitrogen & Hydrogen gas?

Which is not a dextrose sugar?

Disorders of Red blood cells is caused due to the deficiency of:

Which of the following is a Lewis base?

Active mass means ____________.

Consider the following reaction,
\(H_{ 2 }O+HCl\rightleftharpoons { H }_{ 3 }{ O }^{ + }+{ Cl }^{ - }\) ,
which species is an electron pair acceptor in this reaction?

Which human activity results in contamination of water bodies?

Which product is obtained when chloromethane (or methyl chloride) is reduced?

Which of the following is a Lewis Base?

PbS is the formula of:

Which of the following is used to remove permanent hardness in water?

The temperature inside a green house can be higher than the outside temperature.

Which process produces an alkane?

What is the chemical formula of slaked lime?

What is the percentage of Nitrogen in Ammonium sulphate \({ (NH }_{ 4 })_{ 2 }{ SO }_{ 4 }\)?

__________ is used to manufacture urea fertilizer.

Highest temperature in Mesosphere is:

A double arrow (\(\rightleftharpoons \)) indicates.

Nitrogen dioxide is synthesized according to the given equilibrium.
\(2NO_{ (g) }+O_{ 2(g) }\rightleftharpoons 2N{ O }_{2 (g) }\)
The unit of Kc, for this reaction is:

The disease caused due to the deficiency of Vitamin D is:

Glucose is:

Which compound is not a saturated hydrocarbon?

Formic acid contains functional group:

In an irreversible reaction equilibrium is:

Kwashiorkor is a disease caused by an extreme lack of:

For a reversible reaction K = \(\frac { { [C] }^{ 2 } }{ [A][B] } \) . The correct product of above expression is:

What is the unit of equilibrium constant for N_{2 (g)} + O_{2 (g)} ⇔ 2NO_(g) ?

In the following reaction which species is donating an electron pair?
\({ NH }_{ 3 }+{ BF }_{ 3 }\rightarrow { H }_{ 3 }N-{ BF }_{ 3 }\)

Which of the following is the chemical formula of Haematite?

Which of the following is not a water borne disease?

Which of the following is an ore of Aluminum?

Which of the following substance reacts with to produce ethyleneglycol?

The general formula of alkynes is:

Which is reddish brown gas?

Galena is the ore of _________ metal.

The formula of Halite is:

The emission of 𝐶𝑂, 𝑁𝑂 and unburned hydrocarbons can be reduced by using:

Stem "But" stands for how many carbon atoms?

What happens when ammonium carbamate is distilled with steam?

\(N{ H }_{ 3 }\) cannot be classified as a base by:

Raffinose (\({ C }_{ 18 }{ H }_{ 32 }{ O }_{ 16 }\)) on hydrolysis forms ______ simple sugars.

When \(H^{ + }\) < 1 × [latex]10^{ -7 }[/latex] M, then solution will be:

The functional group of Amines is

Which process produces an Alkane?

Lowest temperature in stratosphere is:

In the following reaction which species is donating an electron pair?
\({ NH }_{ 3 }+{ BF }_{ 3 }\rightarrow { H }_{ 3 }N-{ BF }_{ 3 }\)

On boiling temporary hard water, the substance which is settled down is:

Which of the following is not the macroscopic characteristic of forward reaction?

Which is used for dehydrohalogenation of Alkyl halides?

Which of the following diseases is caused due to the deficiency of vitamin-A?

Which of the following is NOT a water-borne disease?

The general formula for Amines is:

Sulphur Trioxide is prepared according to the following reaction:
\(2SO_{ 2(g) }+O_{ 2(g) }\rightleftharpoons 2S{ O }_{ 3(g) }\)
The condition of this reaction is:

A drain cleaner solution contains 1.0 × \({ 10 }^{ -8 }\)M, \({ OH }^{ - }\) concentration. This solution is:

Complete the following reaction:
\(CH\equiv CH+{ H }_{ 2 }\xrightarrow [ Ni ]{ 200-300^{ O }C } \) _____________

What is the concentration of \({ H }^{ + }\) ion in the milk of magnesia?

Which is used for dehydro-halogenation?

Which of the following Salts causes temporary hardness in water?

Green colour in firework is produced by the use of: (Example 10.4 P-35)

What per cent of alkaline aqueous solution of \(KMnO_{ 4 }\) is used to detect the presence of an Alkene?

Which of the following is an Ether?

Which substance is used as antacid and laxative?

Which is an alcohol?

The separation of mineral from gangue is called concentration. Which of the following methods is used for concentration?

Consider the following reaction,
\(H_{ 2 }O+HCl\rightleftharpoons { H }_{ 3 }{ O }^{ + }+{ Cl }^{ - }\) ,
which species is an electron pair acceptor in this reaction?

Raffinose (\({ C }_{ 18 }{ H }_{ 32 }{ O }_{ 16 }\)) on hydrolysis forms ______ simple sugars.

Which coloured solution is produced, when Ketones are mixed with alkaline sodium nitro-prusside solution?

Which product is obtained when chloromethane is reduced?

Which of following reacts with concentrated alkaline KMn\({ O }_{ 4 }\) to produce oxalic acid?

Identify the compound responsible for acid rain:

Which of the following is a heterocyclic compound?

Which of the following is responsible for acid rain?

The unit of Kc for a reaction with equal number of moles of reactants & products is:

Plants convert glucose into:

Which of the following is a homocyclic compound?

Permanent hardness of water can be removed by:

What is the unit of equilibrium constant for
\({ N }_{ 2 }+{ O }_{ 2 }\rightleftharpoons 2N{ O }_{ 2 }\)

Which of the following is used as raw material for Solvay process?

Which compound has two halogen atoms on adjacent carbon atoms?

Which one is not an air pollutant?

Which of the following is not a source of starch?

Chemical formula of Slaked lime is:

The general formula of alkane is:

Which one of the followings is insoluble in water?

The formula of ammonium carbamate is:

At equilibrium state of a reversible reaction:

Which of the following layers contains ozone gas?

The atmospheric layer that has the temperature range of −5 °C to −93°C is:

Each DNA nucleotide consists of:

For a reversible reaction Kc = \(\frac { { [C] }^{ 2 } }{ [A][B] } \) . The correct equation of above expression is:

Raffinose produces ______ units of simple sugars when hydrolyzed.

For which reaction Kc has NO units?

The word vitamin was first used by:

Which of the following is an aldehyde?

Which of the following is used as raw material for preparation of urea?

n-pentane: iso-pentane and neo pentane are having different:

What is the colour of methyl red in basic solution?

Fehling’s solution is used to determine the presence of:

Which of the following is used as jet fuel?

At what pH does Phenolphthalein change its colour?

For a reversible reaction
\(K_{ C }=\frac { [HI]^{ 2 } }{ [{ H }_{ 2 }][{ I }_{ 2 }] } \)
which substance is product of the reaction?

Reduction of Ethylchloride (\({ C }_{ 2 }{ H }_{ 5 }Cl\)) produces.

What are the units of Kc for
\( { N }_{ 2(g) }+{ O }_{ 2(g) }\rightleftharpoons 2{ N }{ O }_{ 2(g) } \)?

The pH of Lemon juice is ‘2’. The \({ H }^{ + }\) ion concentration \({ H }^{ + }\) in the lemon juice is:

The reduction of alkyl halides takes place in the presence of:

What will happen if \([O{ H }^{ - }]\) increases?

Raffinose (\({ C }_{ 18 }{ H }_{ 32 }{ O }_{ 16 }\)) is a:

__________ is used for artificial ripening of fruits.

Phenol gives _______ ppt with bromine water.

In which of the following compounds, oxygen is attached to two alkyl groups?

Which of the following process is reduction in nature?

Marble buildings and statues are destroyed by acid rain due to reaction of Sulphuric acid with:

Identify molecule produced when electrical discharges pass through oxygen in air:

Which of the following is not a waterborne disease?

Percentage of nitrogen in urea is:

Ultraviolet radiations are absorbed by ozone in the stratosphere, that is why:

If an alkane is having '5’ carbon atoms then the number of Hydrogen atoms in this alkane will be:

Which of the following is a Lewis acid?

Colour of methyl red in solution of pH=9 is:

Halite is an ore of:

In the given reaction which species is donating an electron pair?
\({ NH }_{ 3 }+{ BF }_{ 3 }\rightarrow { H }_{ 3 }N-{ BF }_{ 3 }\)

Which of the followings is not a waterborne disease?

Which of the following is used for ripening of fruits?

Which process produces an alkane?

Which of the following is evolved during the ripening of fruits and vegetables?

Pitch is produced by:

Chemical formula of ammonium carbamate is:

In an irreversible reaction, equilibrium is:

Which of the following is used for dehydrohalogenation of alkyl halides?

Most of air pollution is caused by:

Which of the following causes brain damage in children?

___________ is used to make rectified spirit by fermentation process

Which of the following is used as Antacid?

Acid rain has pH less than:

Which of the following is a Lewis base?

Which one of the following vitamins is fat soluble?

The gastric juice has pH= 1 It means a ___________________ solution.

Formic acid contains _______ functional group.

Baeyer’s test is used to detect the presence of:

What is the colour of phenolphthalein in acidic medium?

For a general reaction 2A + B \(\rightleftharpoons \) 2C + D the rate of forward reaction will be equal to:

By dehydration we mean the removal of:

Formic acid contains functional group:

Which of the following acids is used in the manufacturing of many chemicals, drugs, dyes, paints and explosives?

Which of the following is used as domestic fuel?

Which of the following does not happen, when a system is at equilibrium state?

Which of the following is a heterocyclic compound?

In which of the following hydrocarbons, oxygen is attached to two alkyl groups?

Which of the following cannot be classified as Arrhenius acid?

Which scientist proposed the law of mass action?