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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1601. |
Answer the following questions. (a) What is meant by ‘fuel’? (b) Name the different types of fossil fuels. (c) Which are the renewable sources of energy? (d) Which element is used for the production of atomic power? |
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Answer» Answer the following questions. (a) What is meant by ‘fuel’? (b) Name the different types of fossil fuels. (c) Which are the renewable sources of energy? (d) Which element is used for the production of atomic power? |
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| 1602. |
Which alkaline earth metal is formed by the decay of uranium? |
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Answer» Which alkaline earth metal is formed by the decay of uranium? |
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| 1603. |
correct order of acidic strength in derivatives of carboxylic acid |
| Answer» correct order of acidic strength in derivatives of carboxylic acid | |
| 1604. |
Explain how painting of an iron gate prevents it from rusting. |
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Answer» Explain how painting of an iron gate prevents it from rusting. |
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| 1605. |
Sort the following in increasing order of atomicity. |
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Answer» Sort the following in increasing order of atomicity. |
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| 1606. |
Does a compound has similar properties to its constituent elements?Explain with an example. |
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Answer» Does a compound has similar properties to its constituent elements? Explain with an example. |
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| 1607. |
Question 1 (b)Classify the following as chemical or physical changes: b. Melting of butter in a pan |
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Answer» Question 1 (b) Classify the following as chemical or physical changes: b. Melting of butter in a pan |
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| 1608. |
How many of the given substances will form heterogenous mixtures with water?Husk, Honey, Sugar, Mud, Vinegar3 |
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Answer» How many of the given substances will form heterogenous mixtures with water? Husk, Honey, Sugar, Mud, Vinegar
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| 1609. |
A student was asked by her science teacher to prepare a true solution. She dissolved the solute in water but forgot to record its name. What may be the correct name of the solute ?(1) barium sulphate(2) sulphur powder(3) alum(4) egg albumin |
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Answer» A student was asked by her science teacher to prepare a true solution. She dissolved the solute in water but forgot to record its name. What may be the correct name of the solute ? (1) barium sulphate (2) sulphur powder (3) alum (4) egg albumin |
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| 1610. |
Which postulate of Dalton's atomic theory is the result of: (i) Law of conservation of mass given by Lavoisier? (ii) Law of constant proportions given by Proust? |
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Answer» Which postulate of Dalton's atomic theory is the result of: (i) Law of conservation of mass given by Lavoisier? (ii) Law of constant proportions given by Proust? |
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| 1611. |
Why is charcoal used as a domestic fuel? |
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Answer» Why is charcoal used as a domestic fuel? |
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| 1612. |
Give scientific reasons. (a) Diamond is used to cut metals. (b) Carbon dioxide is used for putting out fires. |
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Answer» Give scientific reasons. (a) Diamond is used to cut metals. (b) Carbon dioxide is used for putting out fires.
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| 1613. |
Difference between methylene and methenyl |
| Answer» Difference between methylene and methenyl | |
| 1614. |
Metal can be prevented from rusting by |
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Answer» Metal can be prevented from rusting by |
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| 1615. |
On destructive distillation, 1000 kg of coal gives P kg of coke, Q litres of ammonia, R litres of coal tar and S m3 of coal gas. The value of P, Q, R and S respectively are: |
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Answer» On destructive distillation, 1000 kg of coal gives P kg of coke, Q litres of ammonia, R litres of coal tar and S m3 of coal gas. The value of P, Q, R and S respectively are: |
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| 1616. |
Quicklime (CaO - Calcium Oxide) reaction with water is regarded as exothermic. A student mixes these two products in a test tube and touches its side surface. Which of the following statement correctly describes the student's observation? |
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Answer» Quicklime (CaO - Calcium Oxide) reaction with water is regarded as exothermic. A student mixes these two products in a test tube and touches its side surface. Which of the following statement correctly describes the student's observation? |
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| 1617. |
”TajMahal is said to be suffering from Marble Cancer”. Which one of the following explains this statement? |
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Answer» ”TajMahal is said to be suffering from Marble Cancer”. Which one of the following explains this statement? |
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| 1618. |
Question 2Air is a natural resource and cannot be exhausted by human activities. It is known as an inexhaustible natural resource. Which of the following is another inexhaustible natural resource?(a) Coal(b) Petroleum(c) Sun-light(d) Minerals |
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Answer» Question 2 Air is a natural resource and cannot be exhausted by human activities. It is known as an inexhaustible natural resource. Which of the following is another inexhaustible natural resource? (a) Coal (b) Petroleum (c) Sun-light (d) Minerals |
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| 1619. |
The electrostatic force between two static charges in vaccum is F. Find force in medium of relative permittivity 8 |
| Answer» The electrostatic force between two static charges in vaccum is F. Find force in medium of relative permittivity 8 | |
| 1620. |
what is gibb's free energy |
| Answer» what is gibb's free energy | |
| 1621. |
Why are bituminous and anthracite considered to be very good quality of coal ? Why is coal an important industrial resource? |
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Answer» Why are bituminous and anthracite considered to be very good quality of coal ? Why is coal an important industrial resource? |
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| 1622. |
You have a wire of pure copper and a block of impure copper. How will you clean the impure copper? |
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Answer» You have a wire of pure copper and a block of impure copper. How will you clean the impure copper? |
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| 1623. |
for the combustion of C3H8(g) at cons†an t temp △ H-△ U IS |
| Answer» for the combustion of C3H8(g) at cons†an t temp △ H-△ U IS | |
| 1624. |
निम्नलिखित प्रश्नों के उत्तर (50-60 शब्दों में) लिखिए −सुभाष बाबू के जुलूस में स्त्री समाज की क्या भूमिका थी? |
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Answer» निम्नलिखित प्रश्नों के उत्तर (50-60 शब्दों में) लिखिए − सुभाष बाबू के जुलूस में स्त्री समाज की क्या भूमिका थी? |
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| 1625. |
I want to know a brief description of what is capillarity.. |
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Answer» I want to know a brief description of what is capillarity.. |
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| 1626. |
The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large number of ester groups. Another synthetic fibre C is made of a polymer D which consists of a number of glucose units joined one after the other. (a) Which fibre could be (i) terylene (ii) rayon , and (iii) nylon ? (b) Name the polymer D. (c) Which fibre (A, B or C) is prepared from a natural raw material ? (d) Which fibre (A, B or C) contains the same type of grups as those in a PET jar ? |
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Answer» The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large number of ester groups. Another synthetic fibre C is made of a polymer D which consists of a number of glucose units joined one after the other. (a) Which fibre could be (i) terylene (ii) rayon , and (iii) nylon ? (b) Name the polymer D. (c) Which fibre (A, B or C) is prepared from a natural raw material ? (d) Which fibre (A, B or C) contains the same type of grups as those in a PET jar ? |
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| 1627. |
how nutrilisation reaction is not a redox reaction |
| Answer» how nutrilisation reaction is not a redox reaction | |
| 1628. |
Define neutralization reaction. |
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Answer» Define neutralization reaction. |
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| 1629. |
A^m/n=2 (x^a-x^-b)^-b×x^b×x^-c simplify |
| Answer» A^m/n=2 (x^a-x^-b)^-b×x^b×x^-c simplify | |
| 1630. |
An ideal gas with adiabatic exponent γ is heated at constant pressure. It absorbs Q amount of heat. Fraction of heat absorbed in increasing the temperature |
| Answer» An ideal gas with adiabatic exponent γ is heated at constant pressure. It absorbs Q amount of heat. Fraction of heat absorbed in increasing the temperature | |
| 1631. |
Which of the following is not a green-house gas |
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Answer» Which of the following is not a green-house gas |
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| 1632. |
Why was it important for air or oxyzen to remain absent for the formation of petroleum products? |
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Answer» Why was it important for air or oxyzen to remain absent for the formation of petroleum products? |
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| 1633. |
the complex exhibit lowest energy adsorption bond is (1) (NiCl_4)^{2-} (2)( Ni(CO)_4) (3)(Ni(CN)_4)^{2- ^{}}(4)(Ni(H_2O)^2 |
| Answer» the complex exhibit lowest energy adsorption bond is (1) (NiCl_4)^{2-} (2)( Ni(CO)_4) (3)(Ni(CN)_4)^{2- ^{}}(4)(Ni(H_2O)^2 | |
| 1634. |
Zinc oxide reacts with Ca(OH)2 and H2SO4, thus it is a/an ________. |
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Answer» Zinc oxide reacts with Ca(OH)2 and H2SO4, thus it is a/an ________. |
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| 1635. |
Give two uses for each of the following : (a) coal (b) coke (c) wood charcoal (d) sugar charcoal (e) bone charcoal (f) lamp black |
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Answer» Give two uses for each of the following : (a) coal (b) coke (c) wood charcoal (d) sugar charcoal (e) bone charcoal (f) lamp black |
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| 1636. |
45.A vessel of volume v= 16.62 l contains a mixture of helium and hydrogen at a temperature of 27 degree Celsius and pressure 6 atmosphere. The mass of the mixture is 10 g. Ratio of mass of hydrogen to that of helium will be? |
| Answer» 45.A vessel of volume v= 16.62 l contains a mixture of helium and hydrogen at a temperature of 27 degree Celsius and pressure 6 atmosphere. The mass of the mixture is 10 g. Ratio of mass of hydrogen to that of helium will be? | |
| 1637. |
Question 8Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A+B→A2B. Which of the following statements concerning this reaction are incorrect?(i) The product A2B shows the properties of substances A and B.(ii) The product will always have a fixed composition.(iii) The product so formed cannot be classified as a compound.(iv) The product so formed is an element. (a) (i), (ii) and (iii)(b) (ii), (iii) and (iv)(c) (i), (iii) and (iv)(d) (ii), (iii) and (iv) |
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Answer» Question 8 Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A+B→A2B. Which of the following statements concerning this reaction are incorrect? (i) The product A2B shows the properties of substances A and B. (ii) The product will always have a fixed composition. (iii) The product so formed cannot be classified as a compound. (iv) The product so formed is an element. (a) (i), (ii) and (iii) (b) (ii), (iii) and (iv) (c) (i), (iii) and (iv) (d) (ii), (iii) and (iv) |
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| 1638. |
The pair of compound which cannot exist together in solution is |
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Answer» The pair of compound which cannot exist together in solution is |
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| 1639. |
Identify the mixture in which the components can be identified at a glance of the mixture. |
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Answer» Identify the mixture in which the components can be identified at a glance of the mixture. |
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| 1640. |
What would be the hybridization of the bridged Oxygen atom in As2O3?Is it sp2 ? |
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Answer» What would be the hybridization of the bridged Oxygen atom in As2O3? Is it sp2 ? |
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| 1641. |
When two atoms are rubbed and they get charged,will there be a change in the mass of the atoms? |
| Answer» When two atoms are rubbed and they get charged,will there be a change in the mass of the atoms? | |
| 1642. |
Name some sources of water. |
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Answer» Name some sources of water. |
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| 1643. |
What is the hybridization of sulphur in S2O7²- |
| Answer» What is the hybridization of sulphur in S2O7²- | |
| 1644. |
Q.Oxidation of isobutylene with acid potassiumpermanganate gives (1) Acetone +CO2 (2) Acetic acid (3) Acetic acid + CO (4) Acetic acid + acetone2269 |
| Answer» Q.Oxidation of isobutylene with acid potassiumpermanganate gives (1) Acetone +CO2 (2) Acetic acid (3) Acetic acid + CO (4) Acetic acid + acetone2269 | |
| 1645. |
37. A atoms occupy all d corners n B atoms occupy all d faces. if all atoms along a body diagonal are removed den find d formula of d compound. |
| Answer» 37. A atoms occupy all d corners n B atoms occupy all d faces. if all atoms along a body diagonal are removed den find d formula of d compound. | |
| 1646. |
Acid rain is caused by excess |
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Answer» Acid rain is caused by excess |
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| 1647. |
Identify the double displacement reaction which does not involve a precipitate formation. |
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Answer» Identify the double displacement reaction which does not involve a precipitate formation. |
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| 1648. |
Number of neutrons in Tritium are: |
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Answer» Number of neutrons in Tritium are: |
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| 1649. |
10c) 5.3 xA 20 litre container at 400K contains CO2(g)at pressure 0.4 atm and an excess of SrO(neglect the volume of solid SrO). The volumeof the container is now decreased by movingthe movable piston fitted in the container. Themaximum volume of the containerpressure of CO2 attains its maximum valuewill be5whenTI(Given that : SrCO3(s)Kp= 1.6 atm)(a) 10 litre(c) 2 litreSrO(s) +CO2(g)"(b) 4 litre(d) 5 litre |
| Answer» 10c) 5.3 xA 20 litre container at 400K contains CO2(g)at pressure 0.4 atm and an excess of SrO(neglect the volume of solid SrO). The volumeof the container is now decreased by movingthe movable piston fitted in the container. Themaximum volume of the containerpressure of CO2 attains its maximum valuewill be5whenTI(Given that : SrCO3(s)Kp= 1.6 atm)(a) 10 litre(c) 2 litreSrO(s) +CO2(g)"(b) 4 litre(d) 5 litre | |
| 1650. |
Strength of ionic bond |
| Answer» Strength of ionic bond | |