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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.
| 1551. |
Glass can be |
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Answer» Glass can be |
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| 1552. |
Differences between metals and non metals |
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Answer» Differences between metals and non metals |
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| 1553. |
60% of given sample of oxygen gas when heated to a high temperature dissociates into atoms. Ratio of its initial heat capacity at const volume and final heat vapacity at const vol is __________ |
| Answer» 60% of given sample of oxygen gas when heated to a high temperature dissociates into atoms. Ratio of its initial heat capacity at const volume and final heat vapacity at const vol is __________ | |
| 1554. |
Among the given pair of metals, which one is the pair of one metal more reactive and other metals being less reactive than hydrogen? |
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Answer» Among the given pair of metals, which one is the pair of one metal more reactive and other metals being less reactive than hydrogen? |
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| 1555. |
The metal oxides are: |
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Answer» The metal oxides are: |
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| 1556. |
what is the reason for the state of solvent and and the solution to be the same? |
| Answer» what is the reason for the state of solvent and and the solution to be the same? | |
| 1557. |
Give any two ways in which non-biodegradable substances would affect the environment. |
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Answer» Give any two ways in which non-biodegradable substances would affect the environment. |
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| 1558. |
Scratches on poly methyl methacrylate polymer glass can be easily wiped out by |
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Answer» Scratches on poly methyl methacrylate polymer glass can be easily wiped out by |
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| 1559. |
Which metal gets accumulates in the body of fish but it cannot kill them. |
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Answer» Which metal gets accumulates in the body of fish but it cannot kill them. |
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| 1560. |
Name any two sources which cause air pollution due to suspended particulate matter |
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Answer» Name any two sources which cause air pollution due to suspended particulate matter |
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| 1561. |
34. heat is bieng supplied at a const rate to the spheare of ice which is melting at the rateof 0.1 gm/s. It melts completely in 1000s. the rate of rise of temperature is-?? |
| Answer» 34. heat is bieng supplied at a const rate to the spheare of ice which is melting at the rateof 0.1 gm/s. It melts completely in 1000s. the rate of rise of temperature is-?? | |
| 1562. |
What is the relation between pressure, volume and work. |
| Answer» What is the relation between pressure, volume and work. | |
| 1563. |
Positively charged ions get attracted to the __________ and __________ electrons from it to form neutral atom. |
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Answer» Positively charged ions get attracted to the __________ and __________ electrons from it to form neutral atom. |
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| 1564. |
EXPLAIN THE SEVEN STATES OF MATTER. |
| Answer» EXPLAIN THE SEVEN STATES OF MATTER. | |
| 1565. |
the gram equivalent of O2 at STP. |
| Answer» the gram equivalent of O2 at STP. | |
| 1566. |
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method. (a) Salt from sea water (b)Ammonium chloride from sand (c)Chalk powder from water (d)Iron from sulphur (e)Water and alcohol (f)Sodium chloride and potassium nitrate (g)Calcium carbonate and sodium chloride. |
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Answer» Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method. (a) Salt from sea water (b)Ammonium chloride from sand (c)Chalk powder from water (d)Iron from sulphur (e)Water and alcohol (f)Sodium chloride and potassium nitrate (g)Calcium carbonate and sodium chloride. |
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| 1567. |
Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from the synthetic material? Advise Rana, giving your reason. |
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Answer» Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from the synthetic material? Advise Rana, giving your reason. |
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| 1568. |
Which gas is evolved when sodium metal reacts with water? |
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Answer» Which gas is evolved when sodium metal reacts with water? |
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| 1569. |
The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid. |
| Answer» The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid. | |
| 1570. |
Volume of CO2 obtained on complete decomposition of 9.85 g of Na2CO3 is? |
| Answer» Volume of CO2 obtained on complete decomposition of 9.85 g of Na2CO3 is? | |
| 1571. |
CuO is reacted with carbon in the absence of air to form copper. Which process is this? |
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Answer» CuO is reacted with carbon in the absence of air to form copper. Which process is this? |
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| 1572. |
Have RAYON also said that it is semi-natural fibre? |
| Answer» Have RAYON also said that it is semi-natural fibre? | |
| 1573. |
Oxides of nitrogen and sulphur cause ______ rain when reacted with water vapour present in atmosphere. |
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Answer» Oxides of nitrogen and sulphur cause ______ rain when reacted with water vapour present in atmosphere. |
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| 1574. |
Why cooking pans don’t have metal handles? |
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Answer» Why cooking pans don’t have metal handles? |
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| 1575. |
What is the role of nucleus in an atom ? |
| Answer» What is the role of nucleus in an atom ? | |
| 1576. |
A mixture containing He gas and CH4 gas in equal mass ratio in a container is allowed to effuse through a small orifice made in container. The mass percentage of He gas in the mixture coming out initially is |
| Answer» A mixture containing He gas and CH4 gas in equal mass ratio in a container is allowed to effuse through a small orifice made in container. The mass percentage of He gas in the mixture coming out initially is | |
| 1577. |
Write any 5 environmental hazards of plastics. |
| Answer» Write any 5 environmental hazards of plastics. | |
| 1578. |
14. What happens when the water is at 0 degrees |
| Answer» 14. What happens when the water is at 0 degrees | |
| 1579. |
Write two shortcomings of synthetic fibres. |
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Answer» Write two shortcomings of synthetic fibres. |
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| 1580. |
A missile has been fired with an initial velocity u. If the velocity is tripled, what will be the corresponding change in its kinetic energy? |
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Answer» A missile has been fired with an initial velocity u. If the velocity is tripled, what will be the corresponding change in its kinetic energy? |
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| 1581. |
Try to break a piece of chalk, a piece of charcoal and a piece of iron.In which of the above three substances would you find the force of attraction between the particles to be highest? |
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Answer» Try to break a piece of chalk, a piece of charcoal and a piece of iron. In which of the above three substances would you find the force of attraction between the particles to be highest? |
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| 1582. |
The flame of a candle is always upright due to ___________. |
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Answer» The flame of a candle is always upright due to ___________. |
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| 1583. |
Differentiate between the physical properties of metals and non-metals. |
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Answer» Differentiate between the physical properties of metals and non-metals. |
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| 1584. |
In a candle flame, what is the colour of : (a) innermost zone (b) middle zone, and (c) outer zone ? |
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Answer» In a candle flame, what is the colour of : (a) innermost zone (b) middle zone, and (c) outer zone ? |
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| 1585. |
if Xg of metal forms Yg of metal chloride,then equivalent weightof metal is |
| Answer» if Xg of metal forms Yg of metal chloride,then equivalent weightof metal is | |
| 1586. |
Question 27Why should we save paper? |
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Answer» Question 27 Why should we save paper? |
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| 1587. |
Study the table given below. MixtureWantedunwantedcomponentcomponent1. Wheat flourFlourX2. YGrain seedsStalks Based on the above information, identify X and Y. |
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Answer» Study the table given below. |
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| 1588. |
Match the following. ‘A’ ‘B’ (a) Mercury 1. Alloy of iron, nickel, chromium (b) Graphite 2. Alloy of iron and carbon (c) Sulphur 3. The ‘lead’ in a pencil (d) Steel 4. Medicines (e) Stainless steel 5. Thermometer |
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Answer» Match the following.
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| 1589. |
what is degree of freedom of co2 and o3( carbon dioxide and ozone |
| Answer» what is degree of freedom of co2 and o3( carbon dioxide and ozone | |
| 1590. |
Which one of the following statements best describes “jet streams”? |
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Answer» Which one of the following statements best describes “jet streams”? |
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| 1591. |
A sulphur atom contains 16 protons and 16 neutrons. Give its atomic number and atomic mass number. |
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Answer» A sulphur atom contains 16 protons and 16 neutrons. Give its atomic number and atomic mass number. |
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| 1592. |
Fill in the blanks. (a) Oxygen ………… burn, but ………… burning. (b) Some ………… substances absorb ………… from the air. (c) It is mandatory to treat ………… before letting them out. (d) Solid carbon dioxide is also called ………… . |
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Answer» Fill in the blanks. (a) Oxygen ………… burn, but ………… burning. (b) Some ………… substances absorb ………… from the air. (c) It is mandatory to treat ………… before letting them out. (d) Solid carbon dioxide is also called ………… .
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| 1593. |
Why are tea cups not preferred to be made of metals? |
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Answer» Why are tea cups not preferred to be made of metals? |
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| 1594. |
Is proton and electron same? How they are same if the charge is different? |
| Answer» Is proton and electron same? How they are same if the charge is different? | |
| 1595. |
What is a metal? |
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Answer» What is a metal? |
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| 1596. |
How could coppersulphate diffuse in wqter |
| Answer» How could coppersulphate diffuse in wqter | |
| 1597. |
what volume of oxygen gas at 0 degree Celcius and 1 atm is needed to burn 1L of propane gas measured under same conditions?? |
| Answer» what volume of oxygen gas at 0 degree Celcius and 1 atm is needed to burn 1L of propane gas measured under same conditions?? | |
| 1598. |
It is necessary that we use coal, petroleum and other fuels only when absolutely necessary. Justify. [3 MARKS] |
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Answer» It is necessary that we use coal, petroleum and other fuels only when absolutely necessary. Justify. [3 MARKS] |
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| 1599. |
The phenomenon of light scattering by particles in a colloid is known as ________________. |
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Answer» The phenomenon of light scattering by particles in a colloid is known as ________________. |
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| 1600. |
Metals that are soft and can be cut with a knife are: |
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Answer» Metals that are soft and can be cut with a knife are: |
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