This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What are examples of diffused reflection |
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Answer» EXAMPLES of diffused reflection are: - - The LIGHT reflected from the wallls - The light reflected from whatever ROUGH SURFACE |
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| 2. |
Say the explanation of Charles law |
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Answer» A law stating that the volume of an ideal gas at constant PRESSURE is DIRECTLY proportional to the ABSOLUTE TEMPERATURE. |
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| 3. |
Law of conservation of momentum |
| Answer» PLEASE MARK AS BRAINLIEST FRIEND | |
| 4. |
Enlist two force act as on a body when it is immersed in a liquid state the condition for a body to require to flote or sink in a liquid |
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Answer» According to Archimedes principle, |
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| 5. |
Hybtidisation state of Co3 1- and structure |
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Answer» Here is your ANSWER...☺☺☺ ➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡ Carbon forms one double bond withone OXYGEN and two SINGLE bonds with two O- ions. So carbon is INVOLVED in 3 sigma bonds and one Pi bond. So carbon is SP2 hybridised. ✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔ I hope this answer is helpful to U...❤❤❤ Keep Asking...✌✌✌ ✨✨✨If help you. Mark my answer as a brainliest✨✨✨ |
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| 6. |
Write IUPAC name of the following compound: |
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Answer» CH3COOCH3=METHYL ACETATE |
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| 7. |
What does the magnitude of london force depend upon |
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Answer» Explanation: London forces are the weakest intermolecular forces. Their magnitude DEPENDS upon the following factors: (1) Size of the MOLECULE: Larger or more complex are the molecule, greater is the magnitude of London forces. This is due to the fact that the large electron CLOUD are easily DISTORTED or polarised. |
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| 8. |
A stove is supposed to produce a Blueven flame what could be wrong if ithe produces yellow flame |
| Answer» HOPE it HELPS............. | |
| 9. |
Structure and hybridisation of carbonate ion |
| Answer» HYBRIDISATION STATE of CO3 2- is SP2. | |
| 11. |
How can you show that sea water contains salt with the help of an experiment |
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Answer» |
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| 12. |
An element ' X' ( Atomic mass = 40 g / mol ) having f.c.c. structure,has unit cell edge length of 400 pm.Calculate the density of 'X' and number of unit cell in 4gm of x |
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Answer» We know that : d= Z * M/a^3* NA Molar mass(M)=40 g /mol Edge length(a)=400 pm=400*10^-10 cm Z for FCC=4 d=4 * 40 / [400*10^-10]^3 * 6.023*10^23 d= 4.1 g/cm^3 We know that, Number of atoms in a UNIT cell of FCC=4 Number of atoms in 4 g=4/40 X 6.023*10^23 =6.023*10^22 atoms . Since , 1 unit cell has------------>4 atoms ? < ------------------ 6.023*10^22 atoms No. of unit cells=6.023*10^22/4 =1.50*10^22 unit cells in 4 g of X. |
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| 13. |
How many moles of mg(po4)2 will contain 0.25 moles of oxygen atoms? |
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Answer» 1 mole of MG(PO4)2 contains 8 moles of OXYGEN ATOMS 8 moles of oxygen atoms = 1 mole of Mg(PO4)2 1 mole of oxygen atoms = 1 /8 mole of Mg(PO4)2 0.25 moles of oxygen atoms = (1/8)*0.25 mole of Mg(PO4)2 1/32 moles of Mg(PO4)2 or 0.03125 |
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| 14. |
What is an ester? How it is made? |
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Answer» In chemistry an ester is a chemical COMPOUND derived from an ACID (organic or inorganic) in which at least ONE OH GROUP is REPLACED by an O alkyl group . |
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| 15. |
Give two examples of reactions which are driven by enthalpy change |
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Answer» Recommended articles |
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| 16. |
What is the PH of 0.1M solution of monosodium succinate |
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Answer» = -1× ㏒1/10 = -1 × -1 = 1 |
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| 17. |
How magnesium chloride is formation by transfer of electrons? |
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Answer» Mg forms ionic BOND to CL by DONATING it's VALANCE ELECTRONS to two cl atoms . |
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| 18. |
What is the valencey of phosphorus? |
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Answer» The VALENCY of PHOSPHORUS is 3. |
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| 19. |
What is freon? . ............... |
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Answer» Freon is a gas which is PRESENT in the aerosol PROPELLANT, refrigerant, or organic solvent having ONE or more than CFC COMPOUNDS. |
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| 20. |
Common gas used in our refrigeraters? |
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Answer» ammonia and SULFUR DIOXIDE are the gases used in our REFRIGERATERS . |
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| 22. |
draw the structure for a true product of 2 Beta hydroxy aldehyde and Alpha unsaturated aldehyde formed by the base catalyst production of propanol |
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| 23. |
In spontaneous reaction concentarion of reactants are more or products are more |
| Answer» PRODUCTS are more PROBABLY | |
| 24. |
Why is rusting of iron irreversible, even though we can use a metal more reactive than iron and simply displace Iron from its oxide? |
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Answer» Even though we use this method the rust will only seem to fade but secretly it is growing and destroying the IRON further more dude |
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| 25. |
Which inert gas is used by the deep sea divers in place of nitrogen present in the air for respiration? |
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Answer» Argon (Ar) gas is USED by deep sea divers in place of NITROGEN PRESENT in the AIR for respiration. HOPE it helps you Please make it BRAINLIEST answer THANK you |
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| 26. |
Give any two examples of immersed corrosion in day to day life |
| Answer» RUSTING of IRON GATE, BENCHES | |
| 27. |
Give a chemical test to distinguish between acetaldehyde and benzaldehyde |
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Answer» HEY, You can do FEHLINGS's test or idoform test to deifferentiate between ACETALDEHYDE and benzaldehyde . HOPE THIS HELPS YOU HAVE A GREAT DAY ****************************** PLEASE MARK AS BRAINLIEST.......!!!! |
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| 29. |
Does changing the configuration of a molecule always means that bonds are broken |
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Answer» The three dimensional shape or configuration of a molecule is an important characteristic. This shape is DEPENDENT on the preferred spatial orientation of covalent BONDS to atoms having two or more bonding partners. Three dimensional configurations are best viewed with the aid of models. In order to represent such configurations on a two-dimensional surface (paper, blackboard or screen), we often use perspective drawings in which the direction of a bond is specified by the line connecting the bonded atoms. In most cases the focus of configuration is a carbon atom so the lines specifying bond DIRECTIONS will originate there. As defined in the DIAGRAM on the right, a simple straight line represents a bond lying approximately in the surface plane. The two bonds to substituents A in the structure on the left are of this kind. A wedge shaped bond is directed in front of this plane (thick end toward the viewer), as shown by the bond to substituent B; and a hatched bond is directed in back of the plane (away from the viewer), as shown by the bond to substituent D. Some texts and other sources may use a dashed bond in the same manner as we have defined the hatched bond, but this can be confusing because the dashed bond is often used to represent a partial bond (i.e. a covalent bond that is partially formed or partially broken). The following examples make use of this notation, and also illustrate the importance of including non-bonding valence shell electron pairs (colored blue) when viewing such configurations . |
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| 30. |
calculate the work done in lifting 200 kg ofa mass through a vertical distance of 6 m. assume g= 10m/s2 |
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Answer» Your answer ..... |
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| 31. |
What is the difference between electron gain enthalpy and electron affinity |
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Answer» Electron GAIN enthalpy is SOMETIMES ALSO referred to as Electron affinity although there is a minute difference between them. Electron gain enthalpy is defined as the amount of energy released when an electron is ADDED to an isolated gaseous atom. ... Positive: When energy is supplied to an atom while adding an electron. |
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| 32. |
Quick lime is added to waterA, write what would you observe B, name the to types of reactions seen in this |
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Answer» First it will convert into ALKALI CaO + H2O --->> Ca(OH)2 Alkali will BREAK into Ca2+ OH- ions Mark me as brainliest |
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| 34. |
Which functional group exhibits metamerism?? |
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Answer» Dear, ketones show metamerism because ketone is a bivalent FUNCTIONAL GROUP and as we know that onlypolyvalent functional GROUPS SHOWS metamerism and is the ketone. |
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| 35. |
Give the type of polymers according to their source of availability |
| Answer» NYLON,RAYON,POLYESTER,actylic | |
| 36. |
Explain how charles law help us in finding out of the absolute zero value |
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Answer» After decreasing the pressure .... A POINT comes when no further volume is decreased which tell US that it's the absolute ZERO ... Mark me as BRAINIEST |
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| 37. |
How does aluminium react with carbon monoxide? |
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Answer» Combination reaction. |
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| 38. |
Why is it necessary for diluting acid before the process of electrolyte takes place why can the strong acid can’t be used |
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Answer» Because water is an INSULATOR. 100% pure water doesn't CONDUCT ELECTRICITY very well at all. When acid such as sulfuric acid (H2SO4) is ADDED, the compounds separate into separate IONS and having that small number of ions increases conductivity astronomically. This doesn't require an acid, you can use a base or almost any compound. Even normal tap water has enough ions to be a good conductor, which is necessary to efficiently perform electrolysis |
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| 39. |
Equivalent mass of 6g of monobasic acid dissolved in 100ml water |
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Answer» equivalent mass = molecular mass/ n- FACTOR We know, for monobasic acid , n - factor will be 1 so, equivalent mass = MOLECUL mass in case of monobasic acid . Now, molarity = Given Weight/molecular mass. × VOLUME of solution {in L} 1 = 6g/molecular mass × 0.1L molecular mass = 60g/mol HENCE, equivalent mass = Molecular mass = 60g Hence answer is 60g I hope this Help u |
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| 40. |
Why is the color of sodium lamp light initially orange and then gradually changes into yellow? |
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Answer» It CHANGES due to heating of sodium lamp. |
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| 41. |
Mention the nature of bonds formed in nitrogen |
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Answer» NITROGEN has Thiple BOND and it was DIAMAGNETIC in NATURE |
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| 42. |
What precautions will you take while decorating your home Light's |
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Answer» Precautions You will TAKE while decorating your home's LIGHT are Must check the fault in wire. |
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| 44. |
Describe the process of neutralisation with the help of an example.ans.The reaction between an acid and a base is known as neutralisation. Salt and water are produced in this process with the evolution of heat. antacids like milk of magnesia (magnesium hydroxide), baking soda, etc. Which contain a base are used for reducing acidity in stomach when excessive acid released by glands. |
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Answer» Neutralization Reaction.Neutralization is a type of CHEMICAL reaction in which a STRONG acid and strong base react with each other to FORM water and salt. ... Heartburn, as well as an acidic stomach due to eating too MUCH spicy food, can be relieved by taking an antacid. |
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| 45. |
What is the absolute mass and absolute charge of an electron? |
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Answer» ABSOLUTE MASS of ELECTRON is 5.45*10^-4 and absolute CHARGE is -1 |
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| 46. |
Name the three fundamental particles present in atom. |
| Answer» PROTONS, neutrons and ELECTRONS are the THREE FUNDAMENTAL particles of an ATOM. | |
| 47. |
How many moles of ammonia are produced when 3.36 litres of nitrogen reacts with 10.08 litre of |
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Answer» 1 MOLE of AMMONIA take VOLUME of 22.4 L at STP. |
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| 49. |
Calculate (i) the order of reaction with respect to a and b |
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Answer» I THINK your QUESTION is INCOMPLETE... |
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| 50. |
Best example of sublimation |
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Answer» Hiii______ |
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