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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. |
C cloro 3mathilpentane karbanic yogic name |
Answer» Cl, CH4 is your ANSWER please MARK as BRAINLIEST THANKS and follow me |
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| 3. |
Virat kohli is doing practice for I.P.Ltournament |
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Answer» In CORONA ? |
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| 4. |
a wire of length l and resistance r is stretched to get the radius of cross section halve to what is the new resistance of the wire after stretching |
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Answer» GOOD AFTERNOONWelcome to Gboard CLIPBOARD, any text you copy will be saved here.aaaaaaaaaaaaaTouch and hold a clip to pin it. Unpinned clips will be DELETED after 1 hour.Use the edit icon to pin, add or DELETE clips.Tap on a clip to PASTE it in the text box.Welcome to Gboard clipboard, any text you copy will be saved here.Tap on a clip to paste it in the text box.Welcome to Gboard clipboard, any text you copy will be saved here.Tap on a clip to paste it in the text box.Tap on a clip to paste it in the text box.Tap on a clip to paste it in the text box.Welcome to Gboard clipboard, any text you copy will be saved here. Explanation: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
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| 5. |
What is the relationship between the standard Gibbs energy change and the equillibrium constant of the reaction? |
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Answer» Answer: A spontaneous REACTION has a negative DELTA G and a large K value. A non-spontaneous reaction has a positive delta G and a small K value. When delta G is equal to zero and K is around one, the reaction is at EQUILIBRIUM. ... This RELATIONSHIP allows us to relate the STANDARD free energy change to the equilibrium constantly. HOPE IT HELPS YOU! MARK AS BRAINLIEST AND FOLLOW ME! |
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| 6. |
The energy of second Bohr orbit of the hydrogen atomis -328 kJ mol; hence the energy of fourth Bohrorbit would be[AIPMT (Prelims)-2005](1) 41 kJ mol-1(2) -1312 kJ mol-1(3) -164 kJ mol-1(4) -82 kJ mol-1 |
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Answer» Explanation: 4 is the CORRECT answer hope it HELPS :) MARK me BRAINLIEST |
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| 7. |
How many atoms are there in 2 moles of sodium |
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| 8. |
Give me answers quickly |
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Answer» Answer: 1.06 Explanation: Let no. of MOLES of OXYGEN = x No. of H-atoms = 12 No. of O-atoms = 4 RATIO of no. of atoms = ratio of no. of moles 12/4 = 3.18/x x= 1.06 So,no. of moles of oxygen = 1.06 |
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| 9. |
❤❤helllooo❤❤I forgot these topics, please do it by explainingWhich of the following Lewis structure is misspelled |
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Answer» HELLO............................. |
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| 10. |
Prove that sulphur is non metal with chemical equation |
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Answer» Answer: We can prove it by performing an activity in which U have to TAKE sulphur powder, flask, BUNSEN BURNER..then burn it and check the oxide .hope it helps. Mark as the brainliest |
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| 11. |
If a five mole mixture of zns and o2 is taken, then how many mole of auto are in the mixture to get the maximum amount of so2p |
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Answer» Answer: 3 moles Explanation: 2ZnS + 3o2 ------> 2ZnO + 2So2 First balance the equation then CHECK the STIOCHIOMETRY coeffecients you wil GET you answer 3 is the ans because we have to obtain MAXIMUM amount of So2 so for that we need maximum amount of o2 |
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| 12. |
How many moles of calcium wil contain 10^27 atoms |
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Answer» Answer: 1070.............,........... |
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| 13. |
B)A injection is filled with liquid medicine, 3 part of which is water and 5 part isHydroxychloroquine. How much of the mixture must be drawn off and replaced with waterso that the mixture may be half water and half Hydroxychloroquine?a)b)c)d) |
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Answer» In vessel, 3 PARTS are water, and 5 parts syrup. So TOTAL it is divided in 8 parts. So, water = 3/8 and syrup = 5/8 To make them equal, 1/2 = 4/8 of both water and syrup, suppose we replace x PART of liquid by water then, and then both must be same. water in drawn part : 3x/8 and syrup : 5x/8 After replacement : water = water before replacement - 3x/8(removed) + x(REPLACED) syrup=syrup before replacement - 5x/8(removed) To make them equal : water before replacement + 5x/8 = syrup before replacement - 5x/8 So, syrup before replacement - water before replacement = 10x/8 = 5x/4 So, 5/8 part - 3/8 part = 5x/4 So, 1/4 part = 5x/4 So, x = 1/5 part Here is your answer mate please follow me please mark it as brainlist please thanks my all answers |
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| 14. |
Integrated equations |
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Answer» An EQUATION representing the dependence of the RATE of reaction on the CONCENTRATION of reacting species is known as differential rate equation. Instantaneous rate of reaction is expressed as the slope of the tangent at any instant of time in the concentration- time graph. HOPE IT HELPS.......... PLS MARK ME AS THE BRAINLIEST ANSWER....... PLSSSSSSSS |
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| 15. |
Plzz give the correct ans...only if u r sure..u can take your time but ans should b correct |
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Answer» I am not SURE with the answer but I think it is Cu(OH) and Cu 2 Explanation: PLZ mark me as brainliest |
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| 16. |
Which one of these belong to same period a 2 b 10 c 5 |
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Answer» 'b' and 'c' Explanation: these two ELEMENTS belong to the same period i.e 2nd period |
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| 17. |
Phenol reacts with sodium carbonate is it exothermic or endothrmic |
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Answer» it is an EXOTHERMIC REACTION. |
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| 18. |
A centrinormal solution is diluted 10 times its normality would become 10^-x value of x is |
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Answer» Answer: New normality = 10 raised to -2 divided by 10 = 10 raised to -3 Hence, X = 3 Explanation: Mark me brainliest! |
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| 19. |
Out of H2 and O2 which one has more bond energy ? why |
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Answer» Answer: O2 Explanation: Larger the number of bonds between two atoms (this is known as bond order), stronger should be the bonding, and so more energy will be required to BREAK the bond. ... You have double bond between the OXYGEN atoms, but only SINGLE bond between the hydrogen atoms. So bond enthalpy of O2 is greater than that of H2. |
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| 20. |
High elastic modulus in materials arises due to |
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Answer» Explanation: The YOUNG's modulus is the slope of the initial section of the CURVE (i.e. m in y = mx + b). When a material reached a certain STRESS, the material will begin to DEFORM. It is up to point where the materials structure is stretching and not deforming. hope it helps...pls follow me..mark as BRAINLIEST |
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| 21. |
Write down electronic fonfigration of group 15 elements also mention there general electronic configuration |
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Answer» <P>Answer: Explanation: The nitrogen family includes the following compounds: nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). All Group 15 ELEMENTS have the ELECTRON configuration ns2np3 in their outer shell, where n is equal to the PRINCIPAL quantum number. |
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| 22. |
Plzzz answer to this question |
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Answer» n+e^3→n^-3 n+e^3→n^-3 |
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| 23. |
What is chlor- alkali process ? write the chemical reactions taking place ? |
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Answer» The term chlor-alkali refers to the two CHEMICALS (chlorine and an alkali) which are simultaneously produced as a result of the ELECTROLYSIS of a saltwater. The most COMMON chlor-alkali chemicals are chlorine and sodium hydroxide (caustic soda) but can INCLUDE potassium hydroxide and muriatic acid. It is a type of decomposition reaction. Chlorine gas is liberated at the anode while HYDROGEN gas is liberated at the cathode. A Chloralkali process always implies the electrolysis of common salt or sodium chloride. |
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| 24. |
What should i watch after captain america: the first avenger?? |
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Answer» Answer: CAPTAIN America: The First Avenger (2011) Captain MARVEL (2019) Iron Man (2008) Iron Man 2 (2010)Explanation: |
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| 25. |
40. Which of the following is not a acidic salt?*O ()(a) CuSO4O (b) NH4CIO (c) FeCl30 (d) CH3COONa |
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Answer» HELLO DOSTO HERE IS YOUR ANSWER |
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| 26. |
N has higher IP than O why |
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Answer» Explanation: Now IONISATION ENERGY(I.E) is the energy required to remove an electron from the VALENCE shell of an atom.As seen in the configuration,N atom has stable half filled valence p-orbital ,THEREFORE LARGE amount of energy is required to remove the valence electron from N atom. Therefore I.E of N is higher than that of O |
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| 27. |
Valence electrons are.Select one:a. In various orbits around the nucleusb. In the closest orbit to the nucleusc. In the most distant orbit from the nucleusd. Not associated with a particular atom |
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Answer» a in various ORBITS around the nocleous Explanation: |
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| 28. |
What will be the volume of hydrogen gas while electrolysis from 3.6 g of water |
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| 29. |
Odd one out of wood ,wool, plastic, air, iron |
Answer» air✈✈✈✈✈.............. |
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| 30. |
Glycerin which type of material |
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Answer» Answer: polyol COMPOUND Explanation: Glycerol ( also called glycerine or glycerin) is a simple polyol compound. It is a COLORLESS, odorless, VISCOUS liquid that is sweet-tasting and non-toxic. The glycerol backbone is FOUND in those lipids known as GLYCERIDES. |
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| 31. |
How do solution differ from gel |
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Answer» Answer: A sol is a TYPE of COLLOID in which solid is the dispersed phase and liquid is the dispersion medium. ... A GEL is a type of colloid in liquid is the dispersed phase and solid is the dispersed medium. |
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| 32. |
Line spectrum is produced by |
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Answer» When electrons move from a HIGHER energy level to a LOWER one, photons are EMITTED and an EMISSION line can be seen in the spectrum. Absorption LINES are seen when electrons absorb photons and move to higher energy levels . |
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| 33. |
Compare solid liquid gases in terms of their intermolecular force of attraction and intermolecular space |
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Answer» INTERMOLECULAR FORCE OF ATTRACTION Solids :- very strong Liquids:- less strong GASES:- free to move INTERMOLECULAR SPACE Solids :- its almost zero Liquids :- LARGE Gases :- free to move in open place Explanation: |
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| 35. |
H2 differ from 2H justify |
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Answer» H2 is a molecule FORM and it is in GAS phase whereas H is just a element . HOPE IT helps ❤️ |
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| 36. |
Answer it..... I will mark you as BRAINLIEST friends.. |
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| 37. |
Application of HSAB |
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Answer» Answer: HSAB concept is an INITIALISM for "hard and SOFT (LEWIS) acids and bases". Also known as the Pearson acid-base concept, HSAB is widely used in chemistry for EXPLAINING stability of compounds, reaction mechanisms and pathways. It ASSIGNS the terms 'hard' or 'soft', and 'acid' or 'base' to chemical species. Explanation: |
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| 38. |
360g of sodium chloride is dissolved in 1.5 litres of water. Find its concentration. |
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Answer» Answer: 1860g Explanation: MASS of SOLUTE (sodium chloride) = 360 g Mass of solvent (WATER) = 1500 g Mass of solution = Mass of solute + Mass of solvent = 360 g + 1500 g = 1860g make me as BRAINLIST |
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| 39. |
3. Write about the electronic configuration of 1st, 2nd and 3rd period. |
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Answer» Answer: from 1st to 3RD period, the ELECTRONS, electrons effinety, size, ATOMIC no., atomic mass increass |
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| 40. |
( (4)How many Pascal high vacuum is required for obtaining completely pure surfaceof metals ?(A) 10-8 to 10-9 (B) 10-8 to 10-10 (C) 10-6 to 10-9 (D) 10-8 to 10-7YY r |
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| 41. |
hlo guys...which among the 3d series having the highest heat of atomization. .needed full explanation and concept.... |
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Answer» Answer: Cr has the highest heat of atomization because it CONTAINS more UNPAIRED electron (4s1 3d5) The enthalpy of atomization depends on the extensive metallic bonding which in turn depends on the number of unpaired electrons |
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| 42. |
Why in group 13 IE decreases down the group but IE of Al and Ga are almost same? |
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| 44. |
How do you classify that colourlesss liquid given to you is pure water |
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Answer» Answer: boil the liquid and SEE it's BOILING point if it is 100 C then it is water Explanation: becoz PURE substance alwas has fis boiling point |
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| 45. |
Write an easy experiment to explain how temperature affects solublity |
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Answer» The SOLUBILITY of the GAS in a solvent is inversely PROPORTIONAL to temperature |
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| 46. |
An element M has the electronic configuration of 2, 8 ,7. Is it metal or non metal? Give reason |
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Answer» Answer: it is a non METAL because it has 7 ELECTRONS in VALENCE SHELL |
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| 47. |
An element M has the electronic configuration as 2 8 7. Is it metal or non metal? Give reason |
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Answer» non metal Explanation: It is a non metal because it has to accept ONE ELECTRON in order to complete it's SATISFACTION. |
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| 48. |
Which of the following pairs is isomorphousa) FeSO4 . 7H2O and CuSO4 . 5H2O b) FeSO4 . 7H2O and ZnSO4 . 7 H2Oc) FeSO4.7H2O and MnSO4 . 4H2O d) CuSO4. 5H2O and MnSO4 . 4H2O |
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Answer» Question: Which of the following pairs is isomorphous a) FeSO₄ . 7H₂O and CuSO₄ . 5H₂O b) FeSO₄ . 7H₂O and ZnSO₄ . 7 H₂O c) FeSO₄.7H₂O and MnSO₄ . 4H₂O d) CuSO₄. 5H₂O and MnSO₄ . 4H₂O __________________________________________________________ ANSWER and explanation: What is an isomorphous substance? Isomorphous substances usually have similar CHEMICAL formulas, and the polarizability and ratio of anion and cation radii are GENERALLY comparable your answer is: FeSO₄ . 7H₂O and ZnSO₄ . 7 H₂O, because they have same degree of HYDRATION VIZ. 7H2O molecules __________________________________________________________Please mark me brainliest （￣︶￣）↗ |
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| 49. |
Write an experiment to explain how temperature affects solublity |
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Answer» If we heat the solvent, the average kinetic ENERGIES of its molecules increases. Hence, the solvent is able to dislodge more particles from the surface of the solute. Thus, increasing the temperature increases the solubilities of SUBSTANCES. For example, sugar and salt are more SOLUBLE in water at higher temperatures. Explanation: Please mark me as a BRANILIEST I will definitely follow you |
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| 50. |
A vessel has equal mass of co2 and n2o. the mole fraction of co2 is... |
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Answer» Answer: Initial partial pressures of CO and CO 2 are 3 atm and 2 atm respectively. 2CO(g)⇋CO 2 (g)+C(s) To reach equilibrium, 2x atm of CO REACTS to form x atm of CO 2
The equilibrium partial pressures of CO and CO 2 are 3−2x atm and 2+x atm respectively. Total equilibrium pressure is (3−2x)+(2+x)=5−x atm. But it is EQUAL to 4.5 atm. 4.5=5−x x=5−4.5 x=0.5 p CO
:p CO 2
=(3−2x):(2+x)=(3−2(0.5)):(2+1(0.5))=2:2.5=4:5 K p
= P CO2
P CO 2
K p
= 22
2.5
K p
=0.625atm −1
The DISSOCIATION of CO = 32x
= 32(0.5)
=0.333 The % dissociation of CO =100×0.333=33.3 |
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