Class 10 Chemistry Grand MCQs Tests

Highest temperature in Mesosphere is:

Which of the following substance reacts with to produce ethyleneglycol?

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

_________ is used to make liquid soap and shaving cream.

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

Which of the following reacts explosively with methane?

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

Which compound is not a saturated hydrocarbon?

Which of the following Salts causes temporary hardness in water?

Which process produces an alkane?

PbS is the formula of:

Which is used for dehydro-halogenation?

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

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

__________ is used to manufacture urea fertilizer.

What happens when ammonium carbamate is distilled with steam?

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

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

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

Active mass means ____________.

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

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

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?

Lowest temperature in stratosphere is:

By dehydration, we mean the removal of:

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

Which is reddish brown gas?

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

Which of the following is a Lewis Base?

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

The functional group of Amines is

Which of the following is the chemical formula of Haematite?

Glucose is:

The formula of Halite is:

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

Which of the following is an ore of Aluminum?

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

Lowest temperature in stratosphere is:

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

Which of the following is the functional group of amine?

Stem "But" stands for how many carbon atoms?

Which of the following is not a water borne disease?

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

Which process produces an Alkane?

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

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

Which substance is used as antacid and laxative?

Which is an alcohol?

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:

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

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

Which of the following is a water soluble vitamin?

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

Which of the following is an Ether?

The general formula of alkynes is:

Which of the following is the chemical formula of Gypsum?

Kwashiorkor is a disease caused by an extreme lack of:

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

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

Which is used for dehydrohalogenation of Alkyl halides?

What is the chemical formula of slaked lime?

Galena is the ore of _________ metal.

____________ causes breathing difficulties, asthma and eye irritation.

Formic acid contains functional group:

Which is not a dextrose sugar?

Which of the following is a Lewis base?

Which product is obtained when chloromethane is reduced?

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

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

Chalcopyrite is the ore of:

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

Which human activity results in contamination of water bodies?

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

Formic acid contains functional group:

The general formula for Amines is:

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

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

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

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:

In an irreversible reaction equilibrium is:

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

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

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

Which of the following is used as jet fuel?

At what pH does Phenolphthalein change its colour?

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

Which one is not an air pollutant?

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

Which scientist proposed the law of mass action?

Which of the following is a heterocyclic compound?

Which of the following is used as domestic fuel?

The general formula of alkane is:

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

Halite is an ore of:

Chemical formula of ammonium carbamate is:

The word vitamin was first used by:

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

Formic acid contains _______ functional group.

Which of the following layers contains ozone gas?

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

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

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

Percentage of nitrogen in urea is:

Which of the following is a heterocyclic compound?

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

Which one of the following vitamins is fat soluble?

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

Which of the following process is reduction in nature?

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

For which reaction Kc has NO units?

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

Formic acid contains functional group:

Which compound has two halogen atoms on adjacent carbon atoms?

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

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

__________ is used for artificial ripening of fruits.

Which of the followings is not a waterborne disease?

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

Which of the following is a Lewis base?

What is the colour of methyl red in basic solution?

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

Which process produces an alkane?

Which of the following is used as Antacid?

Which of the following is a homocyclic compound?

By dehydration we mean the removal of:

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

Each DNA nucleotide consists of:

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

Most of air pollution is caused by:

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

Which of the following is used for ripening of fruits?

Chemical formula of Slaked lime is:

At equilibrium state of a reversible reaction:

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

Plants convert glucose into:

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

Identify the compound responsible for acid rain:

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

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

What is the colour of phenolphthalein in acidic medium?

Acid rain has pH less than:

Pitch is produced by:

The formula of ammonium carbamate is:

Which one of the followings is insoluble in water?

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

Which of the following is an aldehyde?

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

In an irreversible reaction, equilibrium is:

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

Which of the following causes brain damage in children?

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

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

___________ is used to make rectified spirit by fermentation process

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

Which of the following is a Lewis acid?

Which of the following is not a waterborne disease?

Which of the following is responsible for acid rain?

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

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

Phenol gives _______ ppt with bromine water.

Which of the following is not a source of starch?

Which of the following cannot be classified as Arrhenius acid?

Raffinose produces ______ units of simple sugars when hydrolyzed.

Permanent hardness of water can be removed by: