Class 10 Chemistry Grand MCQs Tests

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

Which of the following is the chemical formula of Haematite?

Lowest temperature in stratosphere is:

Active mass means ____________.

What is the chemical formula of slaked lime?

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

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) ?

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

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 functional group of amine?

Chalcopyrite is the ore of:

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

Which process produces an alkane?

Which process produces an Alkane?

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

Which is an alcohol?

Which of the following is a Lewis base?

Which of the following substance reacts with to produce ethyleneglycol?

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

PbS is the formula of:

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:

In an irreversible reaction equilibrium is:

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

Which human activity results in contamination of water bodies?

Which of the following Salts causes temporary hardness in water?

____________ causes breathing difficulties, asthma and eye irritation.

Highest temperature in Mesosphere is:

Glucose is:

Which substance is used as antacid and laxative?

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.

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

By dehydration, we mean the removal of:

Kwashiorkor is a disease caused by an extreme lack of:

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

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

The general formula for Amines is:

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

Which is used for dehydro-halogenation?

The general formula of alkynes is:

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

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

Which is not a dextrose sugar?

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

Which of the following reacts explosively with methane?

Lowest temperature in stratosphere is:

The functional group of 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:

Which compound is not a saturated hydrocarbon?

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

Which is reddish brown gas?

Which of the following is a water soluble vitamin?

Galena is the ore of _________ metal.

Which of the following is an ore of Aluminum?

Which product is obtained when chloromethane is reduced?

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

Stem "But" stands for how many carbon atoms?

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

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

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

Which of the following is not a water borne disease?

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

Which of the following is a Lewis Base?

Which is used for dehydrohalogenation of Alkyl halides?

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

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

Formic acid contains functional group:

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

Formic acid contains functional group:

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 an Ether?

What happens when ammonium carbamate is distilled with steam?

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

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

_________ is used to make liquid soap and shaving cream.

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

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

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

The formula of Halite is:

Which of the following is the chemical formula of Gypsum?

Identify the compound responsible for acid rain:

Formic acid contains functional group:

Which of the following is an aldehyde?

The formula of ammonium carbamate is:

Which of the following cannot be classified as Arrhenius acid?

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

Which of the following is used for ripening of fruits?

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

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

Which of the following is responsible for acid rain?

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

By dehydration we mean the removal of:

Which of the following is a Lewis base?

Percentage of nitrogen in urea is:

Which of the following is not a waterborne disease?

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

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

__________ is used for artificial ripening of fruits.

Formic acid contains _______ functional group.

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

Which one of the following vitamins is fat soluble?

Each DNA nucleotide consists of:

The general formula of alkane is:

Which of the following is used as domestic fuel?

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

Which one of the followings is insoluble in water?

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

What is the colour of phenolphthalein in acidic medium?

Most of air pollution is caused by:

___________ is used to make rectified spirit by fermentation process

Which of the following is a homocyclic compound?

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

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

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

Which of the following is used as jet fuel?

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

Which one is not an air pollutant?

Which of the following process is reduction in nature?

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

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

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

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

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

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

Which scientist proposed the law of mass action?

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

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

The word vitamin was first used by:

Which process produces an alkane?

Which of the followings is not a waterborne disease?

At what pH does Phenolphthalein change its colour?

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

Which of the following causes brain damage in children?

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

Permanent hardness of water can be removed by:

Acid rain has pH less than:

Which of the following is a Lewis acid?

Which of the following layers contains ozone gas?

At equilibrium state of a reversible reaction:

Phenol gives _______ ppt with bromine water.

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

Which of the following is a heterocyclic compound?

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

Halite is an ore of:

Which of the following is a heterocyclic compound?

Raffinose produces ______ units of simple sugars when hydrolyzed.

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

Which of the following is not a source of starch?

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

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

Pitch is produced by:

Plants convert glucose into:

For which reaction Kc has NO units?

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

In an irreversible reaction, equilibrium is:

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

Chemical formula of ammonium carbamate is:

What is the colour of methyl red in basic solution?

Chemical formula of Slaked lime is:

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

Which of the following is used as Antacid?

Which compound has two halogen atoms on adjacent carbon atoms?