Class 10 Chemistry Grand MCQs Tests

Which of the following is a Lewis Base?

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

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

Which compound is not a saturated hydrocarbon?

The general formula of alkynes is:

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

In an irreversible reaction equilibrium is:

Which is an alcohol?

Which product is obtained when chloromethane is reduced?

Which of the following Salts causes temporary hardness in water?

_________ is used to make liquid soap and shaving cream.

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

Chalcopyrite is the ore of:

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

The functional group of Amines is

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

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

Formic acid contains functional group:

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 is the functional group of amine?

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

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

__________ is used to manufacture urea fertilizer.

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

____________ causes breathing difficulties, asthma and eye irritation.

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

Which of the following is a water soluble vitamin?

Which process produces an Alkane?

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

Which of the following is an ore of Aluminum?

Highest temperature in Mesosphere is:

Stem "But" stands for how many carbon atoms?

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

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?

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

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

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

The formula of Halite is:

Galena is the ore of _________ metal.

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

Formic acid contains functional group:

Which is used for dehydro-halogenation?

PbS is the formula of:

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

What happens when ammonium carbamate is distilled with steam?

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

Which is reddish brown gas?

By dehydration, we mean the removal of:

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

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

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

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:

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

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

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

Active mass means ____________.

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

Which of the following is the chemical formula of Gypsum?

Which of the following reacts explosively with methane?

Which of the following is not a water borne disease?

Which process produces an alkane?

Lowest temperature in stratosphere is:

Kwashiorkor is a disease caused by an extreme lack of:

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

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

Which of the following is the chemical formula of Haematite?

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

Which is not a dextrose sugar?

Which of the following is an Ether?

Which substance is used as antacid and laxative?

Which of the following substance reacts with to produce ethyleneglycol?

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

Which is used for dehydrohalogenation of Alkyl halides?

What is the chemical formula of slaked lime?

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

Glucose is:

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

Which of the following is a Lewis base?

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

Which human activity results in contamination of water bodies?

Lowest temperature in stratosphere is:

The general formula for Amines is:

Which of the following is not a waterborne disease?

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

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

In an irreversible reaction, equilibrium is:

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

Which one is not an air pollutant?

The word vitamin was first used by:

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

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

Phenol gives _______ ppt with bromine water.

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

At what pH does Phenolphthalein change its colour?

Halite is an ore of:

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

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

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

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

What is the colour of phenolphthalein in acidic medium?

Which of the following is not a source of starch?

Most of air pollution is caused by:

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

Which process produces an alkane?

Which one of the followings is insoluble in water?

Plants convert glucose into:

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 raw material for preparation of urea?

Which scientist proposed the law of mass action?

The formula of ammonium carbamate is:

Which of the following is an aldehyde?

Which of the following is a heterocyclic compound?

Formic acid contains _______ functional group.

Which one of the following vitamins is fat soluble?

The general formula of alkane is:

Which of the following is used as Antacid?

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

Which of the following is a heterocyclic compound?

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

At equilibrium state of a reversible reaction:

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

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

Chemical formula of ammonium carbamate is:

Which compound has two halogen atoms on adjacent carbon atoms?

___________ is used to make rectified spirit by fermentation process

Which of the following is used as domestic fuel?

Which of the following layers contains ozone gas?

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

By dehydration we mean the removal of:

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

Pitch is produced by:

Acid rain has pH less than:

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

Which of the following process is reduction in nature?

Identify the compound responsible for acid rain:

Which of the following cannot be classified as Arrhenius acid?

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

Formic acid contains functional group:

Raffinose produces ______ units of simple sugars when hydrolyzed.

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

Permanent hardness of water can be removed by:

Which of the following causes brain damage in children?

Which of the followings is not a waterborne disease?

Which of the following is a Lewis acid?

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

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

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

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

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

Which of the following is a Lewis base?

Each DNA nucleotide consists of:

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

Chemical formula of Slaked lime is:

Which of the following is a homocyclic compound?

Percentage of nitrogen in urea is:

For which reaction Kc has NO units?

Which of the following is responsible for acid rain?

Which of the following is used as jet fuel?

Which of the following is used for ripening of fruits?

__________ is used for artificial ripening of fruits.

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

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

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

What is the colour of methyl red in basic solution?