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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.
| 3651. |
Metal which occurs in the native state is |
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Answer» Metal which occurs in the native state is |
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| 3652. |
13.Of speen quantum no. Has four different valies then no. Of elements in third period of periodic table |
| Answer» 13.Of speen quantum no. Has four different valies then no. Of elements in third period of periodic table | |
| 3653. |
Explain the isotopes of hydrogen. |
| Answer» Explain the isotopes of hydrogen. | |
| 3654. |
Which among the following is a dehydrating agent for sucrose? |
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Answer» Which among the following is a dehydrating agent for sucrose? |
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| 3655. |
The hydrogen ion concentration of a solution is 0.005M. What is the pH of this solution? |
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Answer» The hydrogen ion concentration of a solution is 0.005M. What is the pH of this solution? |
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| 3656. |
Will c(ch3)2h-cho give april condensation |
| Answer» Will c(ch3)2h-cho give april condensation | |
| 3657. |
Explain the magnetic separation method. |
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Answer» Explain the magnetic separation method. |
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| 3658. |
KF has Nacl structure. What is the distance between K+ and Cl- ions if density of KF is 2.4gm cmcube |
| Answer» KF has Nacl structure. What is the distance between K+ and Cl- ions if density of KF is 2.4gm cmcube | |
| 3659. |
In Electronic configuration III self-contained 8 electrons but not 18 electrons why |
| Answer» In Electronic configuration III self-contained 8 electrons but not 18 electrons why | |
| 3660. |
Which of the following represents a homologous series? |
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Answer» Which of the following represents a homologous series? |
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| 3661. |
What are the chemical name of CH3COOH and chemical name of CH3COONa |
| Answer» What are the chemical name of CH3COOH and chemical name of CH3COONa | |
| 3662. |
The symbol for element with atomic number 111 and name Unununnium is |
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Answer» The symbol for element with atomic number 111 and name Unununnium is |
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| 3663. |
The nature of the reaction of combining moist hydrogen gas with chlorine in direct sunlight is |
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Answer» The nature of the reaction of combining moist hydrogen gas with chlorine in direct sunlight is |
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| 3664. |
What happens when ethanol vapours are passed through the test tube containing alumina? |
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Answer» What happens when ethanol vapours are passed through the test tube containing alumina? |
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| 3665. |
What are Acid Salts and Base Salts ? What is the difference between them ? Give an example. |
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Answer» What are Acid Salts and Base Salts ? What is the difference between them ? Give an example. |
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| 3666. |
Which one of the following is the electron deficient molecule? |
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Answer» Which one of the following is the electron deficient molecule? |
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| 3667. |
The structural formula of ethyl ethanoate is |
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Answer» The structural formula of ethyl ethanoate is |
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| 3668. |
Question 2In a food chain, the third trophic level is always occupied by(a) carnivores(b) herbivores(c) decomposers(d) producers |
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Answer» Question 2 |
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| 3669. |
25. Let A={a,b,c,d}, B={a,b,c} and C={b,d}. Find all set X such that (i) XCB and XCC. (ii) XCA and His not a subset of B |
| Answer» 25. Let A={a,b,c,d}, B={a,b,c} and C={b,d}. Find all set X such that (i) XCB and XCC. (ii) XCA and His not a subset of B | |
| 3670. |
what is the use of NBS in alkynes |
| Answer» what is the use of NBS in alkynes | |
| 3671. |
What is the difference between acids and bases with cheap reactions |
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Answer» What is the difference between acids and bases with cheap reactions |
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| 3672. |
43. Bond length of h2 is 0.64A* and the bond length of f2 is 1.2 A*. Electronegativity of h and f are 2.1 and 4.1 . What is the bond length of hf. |
| Answer» 43. Bond length of h2 is 0.64A* and the bond length of f2 is 1.2 A*. Electronegativity of h and f are 2.1 and 4.1 . What is the bond length of hf. | |
| 3673. |
Density of air at sea level is found to be high this is a direct application ofA.) Boyle's lawB.) Charle's lawC.) Dalton's lawD.) Avagadro's law |
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Answer» Density of air at sea level is found to be high this is a direct application of A.) Boyle's law B.) Charle's law C.) Dalton's law D.) Avagadro's law |
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| 3674. |
The galvanised article is protected against rusting even if the zinc coating is broken. Why and how? |
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Answer» The galvanised article is protected against rusting even if the zinc coating is broken. Why and how? |
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| 3675. |
Write a short note on the recycle method in the 3 R′s [2 MARKS] |
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Answer» Write a short note on the recycle method in the 3 R′s [2 MARKS] |
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| 3676. |
How many carbonyl isomers of C5H10O which react with PhMgBr to give racemic mixture?(5) |
| Answer» How many carbonyl isomers of C5H10O which react with PhMgBr to give racemic mixture?(5) | |
| 3677. |
139.When temperature of a given mass of an ideal gas is raised from 30 degree Celsius to 60 degree Celsius at constant volume the ratio of final to initial pressure is 11 by 10 the value of absolute zero temperature for the gas is |
| Answer» 139.When temperature of a given mass of an ideal gas is raised from 30 degree Celsius to 60 degree Celsius at constant volume the ratio of final to initial pressure is 11 by 10 the value of absolute zero temperature for the gas is | |
| 3678. |
Can a double displacement reaction be a redox reaction?___(Yes or No) |
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Answer» Can a double displacement reaction be a redox reaction? |
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| 3679. |
What is linoleic acid? |
| Answer» What is linoleic acid? | |
| 3680. |
The maximum number of isomers obtained on monochlorination of 2,3 - dimethylbu†an e |
| Answer» The maximum number of isomers obtained on monochlorination of 2,3 - dimethylbu†an e | |
| 3681. |
In LiF, the structure of F− is: |
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Answer» In LiF, the structure of F− is: |
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| 3682. |
The valence shell of the element X contains 2 electrons in a 5s sub shell. Below that shell, element X has a partially filled 4d sub shell. What type of element is X? |
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Answer» The valence shell of the element X contains 2 electrons in a 5s sub shell. Below that shell, element X has a partially filled 4d sub shell. What type of element is X? |
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| 3683. |
Write the chemical formula of (i) soda ash, and (ii) sodium chrbonate decahydrale. |
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Answer» Write the chemical formula of (i) soda ash, and (ii) sodium chrbonate decahydrale. |
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| 3684. |
Which of the property is not shown by bases? |
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Answer» Which of the property is not shown by bases? |
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| 3685. |
Who is my partner ? 'A' column 'B' column a. Lead glass i. Plates b. Bakelite ii. Mattresses c. Thermocol iii. Electric bulb d. Optic glass iv. Electric switch e. Polypropylene v. Lens |
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Answer» Who is my partner ?
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| 3686. |
State the principle for each of the following processes which are used in metallurgy in general.(i) Roasting(ii) Gravity separation(iii) Froth flotation(iv) Aluminothermy(v) Calcination(vi) Electromagnetic separation. |
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Answer» State the principle for each of the following processes which are used in metallurgy in general. |
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| 3687. |
If the difference in the maximum number of electrons between two consecutive shells is 10. What is the alphabetical representation of these shells? |
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Answer» If the difference in the maximum number of electrons between two consecutive shells is 10. What is the alphabetical representation of these shells? |
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| 3688. |
Which of these diagrams represent an endothermic reaction with high activation energy for forward reaction? |
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Answer» Which of these diagrams represent an endothermic reaction with high activation energy for forward reaction? |
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| 3689. |
The IUPAC name of the given compound is |
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Answer» The IUPAC name of the given compound is
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| 3690. |
Which of the given species can act as both Bronsted and Lewis acid? |
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Answer» Which of the given species can act as both Bronsted and Lewis acid? |
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| 3691. |
Find the probability that a dart hits the region X(inner circle) if the radius of the outer circle is x times radius of the inner circle (x>2). |
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Answer»
Find the probability that a dart hits the region X(inner circle) if the radius of the outer circle is x times radius of the inner circle (x>2). |
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| 3692. |
How are methane and ethane prepared from methyl iodide and ethyl bromide ? |
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Answer» How are methane and ethane prepared from methyl iodide and ethyl bromide ? |
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| 3693. |
A metal (M) is stored under kerosene. When a small piece of it is left open in the air, it catches fire. When the product formed is dissolved in water, it turns red litmus to blue. (a) Name the metal (M). (b) Write the chemical equation for the reaction when it is exposed to air and when the product is dissolved in water. |
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Answer» A metal (M) is stored under kerosene. When a small piece of it is left open in the air, it catches fire. When the product formed is dissolved in water, it turns red litmus to blue. (a) Name the metal (M). (b) Write the chemical equation for the reaction when it is exposed to air and when the product is dissolved in water. |
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| 3694. |
The solubility product of a salt having general formula MX2 in water is : 4 × 10−12. The concentration of M2+ ions in the aqueous solution of the salt is |
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Answer» The solubility product of a salt having general formula MX2 in water is : 4 × 10−12. The concentration of M2+ ions in the aqueous solution of the salt is |
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| 3695. |
Which one of the following correctly depicts the biochemical reaction for photosynthesis? |
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Answer» Which one of the following correctly depicts the biochemical reaction for photosynthesis? |
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| 3696. |
What is the difference between polar and non-polar compounds? |
| Answer» What is the difference between polar and non-polar compounds? | |
| 3697. |
why carbon cannot be divalent ? why it is always tetravalent ? |
| Answer» why carbon cannot be divalent ? why it is always tetravalent ? | |
| 3698. |
Metals react with air to form oxides. Give the colour of the flame produced when magnesium burns in the air. Name the product form when the iron is kept in the humid air. |
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Answer» Metals react with air to form oxides.
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| 3699. |
(a) Define the term valency.(b) What is the valency for magnesium and aluminium? |
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Answer» (a) Define the term valency. (b) What is the valency for magnesium and aluminium? |
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| 3700. |
How to find electro negativity of an atom?? |
| Answer» How to find electro negativity of an atom?? | |
