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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. |
Azimuthel quantum number determines a) Shell b) Number of subshell and shape of orbitals. c) Number of subshell and orientations of orbitals d) Spin |
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Answer» The azimuthal quantum number is a quantum number for an ATOMIC orbital that determines its orbital ANGULAR momentum and describes the shape of the orbital.Explanation:THEREFORE ANSWER can be (b) or (c) |
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| 2. |
When 150 litres of a gas enclosed in a vessel maintained a pressure of 1616 my is allowed to expand e 800 litres under constant temperature conditions, what would be it's pressure |
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Answer» it wrong QUESTION PLEASE check again EXPLANATION:mark me as BRILLIANT and follow |
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| 3. |
WHAT IS MOTION .L..LL |
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Answer» Movement of any object from one position to ANOTHER position with RESPECT to the observer is called as Motion. Motion Along a Straight Line: When an object moves along a straight line, the motion of the object is called RECTILINEAR motion. For example; motion of a car on HIGHWAY. |
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| 4. |
Chlorine molecule is formed by mutual sharing of …………. pair/s of electron/s .Plz Explain in detail!!! |
| Answer» PAIR of electronsthis is the CORRECT ANSWER | |
| 5. |
Oxidation number of hydrogen in NaH and HF is respectively a)+1 & -1 b)+1 & +1 c)-1 & +1 d)-1 &-1 |
| Answer» C)-1 & +1hope it HELPS U | |
| 6. |
Write the electric configuration of F and NA |
| Answer» TION:GOOD afternoon I was wondering if you could send me a COPY of the receipt for the DYNAMITE me know yyy | |
| 7. |
0. Calculate the mole percentage of CH3OH and HO 2respectively in 60% (by mass) aqueous solution of CH3OH (1) 45.8, 54.2(2) 54.2. 45.8(3) 50, 50(4) 60, 40 |
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Answer» %CH3OH by mass =60% mass of CH3OH÷ mass of solution =60/100 Let, the mass of the solution be 100gm THEREFORE, mass of CH3OH=60gm and mass of H2O=40gm moles of CH3OH=60/32 moles of H2O=4O/18 % mole of CH3OH=( moles of CH3OH÷ TOTAL moles )X100=[60/32÷(60/32+ 40/18)]×100 =45.76% % mole of H20=100−45.76=54.24% |
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| 8. |
Which of the following formula belongs to alkynes series |
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Answer» nic CHEMISTRY, an ALKYNE is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond. The simplest acyclic alkynes with only one triple bond and no other FUNCTIONAL groups FORM a homologous series with the general CHEMICAL formula CnH2n−2.kiya eOnnie bhest |
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| 9. |
Number of moles oxygen gas present in o.896L of oxygen at STP is1 point |
| Answer» MOLAR volume is the volume OCCUPIED by one mole of the gas at STP. It is equal to 22.4 dm3. (C) The RELATIVE atomic mass of an element is the number of times one atom of the element is heavier than 1/12 times of the mass of an atom of carbon-12.Explanation:hope it helps | |
| 10. |
Here is your bonus question. 1. Who was the Indian bowler off whom Australian legend Don Bradman got a single to reach his 100th first class century?(Answer this and win a prize) |
| Answer» LALA Amarnath, in a surprising manoeuvre, threw the ball to Gogumal Kishenchand. Bradman later called it a brilliant MOVE. He had never FACED Kishenchand before, and neither had he seen him BOWL. On November 15, 1947, Don Bradman PUSHED a single to the mid-on to complete his one 100th First-Class century. | |
| 11. |
If the angles of a quadrilateral are 4x, 3x + 10°, 2x + 10º and 4x + 15°, then find theangles. |
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Answer» hat:Angles of QUADRILATERAL ABCD are:→ ∠A = 4x∠B = 3x + 10°∠C = 2X + 10°∠D = 4x + 15°We KNOW that:SUM of all the four angles of a quadrilateral is EQUAL to 360°.i.e., ∠A + ∠B + ∠C + ∠D = 360°According to the question:→ 4x + 3x + 10° + 2x + 10º + 4x + 15° = 360°→ 4x + 3x + 2x + 4x + 10° + 10° + 15° = 360°→ 13x + 35° = 360°→ 13x = 360° - 35°→ 13x = 325°→ x = 325°/13→ x = 25°∴ Angles of quadrilateral ABCD are:∠A = 4x = 4 × 25° = 100°∠B = 3x + 10° = 3 × 25° + 10° = 75° + 10° = 85°∠C = 2x + 10° = 2 × 25° + 10° = 50° + 10° = 60°∠D = 4x + 15° = 4 × 25° + 15° = 100° + 15° = 115° |
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| 12. |
The ratio of number of molecules in 2 moles of ammonia and 22.4dm3 of Hydrogen gas is |
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Answer» it WRONG question PLEASE check again EXPLANATION:MARK me as brilliant and FOLLOW |
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| 13. |
Inference SI.No.ObservationMetal / Non metal11Magnesium2Sulphur3Iron4Copper5Aluminium6Coal |
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Answer» uuu the ANSWER is that I can help you with the help of a magnet have directive property and casualty insurance and paying you are not the intended addressee s named above and beyondExplanation:y z of motivation to your site to get limited access ♿ the FOLLOWING endangered animals breath in DISSOLVE the LCM the following ad LISTING has a very extensive your age and their surroundings class work of living ORGANISMS are you |
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| 14. |
How to find shared paired of electrons , please explain in brief! |
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Answer» S = N - A. S = shared electrons : TOTAL number of electrons that will be shared and therefore are the bonding electrons. Divide "S" by 2 and you'll have the number of BONDS (LINES) in the structure. |
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| 15. |
डिसेंट्री वेकेशन मैथ्स प्रिपरेशन ऑफ़ रिपोर्ट इन डायग्नोस्टिक लब इजियर हाउ |
| Answer» NEW Delhi: The Chipko movement was a turning point in the forest conservation efforts in India. During the 1970s, when reckless cutting of trees started affecting people's livelihoods, the VILLAGERS from Uttarakhand's Chamoli started hugging trees to prevent them from cutting. This movement, where women participated in large numbers, came to be KNOWN as Chipko andolan, with the word "Chipko" signifying a hug or embrace. The CHAMPIONS of the Chipko movement were local women - Gaura Devi, Sudesha Devi and Bachni Devi. | |
| 16. |
Find the final pressure of gas of 375cm³ and 385cm³ if the initial pressure is 770mmhg |
| Answer» | |
| 17. |
Identify the reducing agent in the following reactions - i) 4NH3 + 5O2 4NO + 6H2Oii) Fe2O3 + 3CO 2Fe + 3CO2iii) 2H2 + O2 2H2Oiv) CuO + H2 Cu + H2O |
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Answer» huuu the FOLLOWING endangered species of the following endangered species of HII Aatma ka bhojan hai ki nhi understand that you are a kid and their surroundings class work of living organisms and their surroundings class work of the day with the soilExplanation:y z of motivation to your account will you please regards thuy the following AD listing has ENDED |
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| 18. |
Name a wrinkle free and mother resistant material |
| Answer» SYNTHETICS LIKE polyester, NYLON, acrylic and olefin, have a natural resistance to wrinkles and a greater STABILITY since they do not ABSORB water as efficiently. | |
| 19. |
Nh4cl + nh4oh does not react with iron why |
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Answer» uojayreyZkhstnkfzludl 2nhoyxuExplanation:7r8og2if8fi2fififo7do7r7f6foduf3uf8 |
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| 20. |
Compare the reactivity of allotropic forms of phosphorus |
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Answer» The least stable, the most reactive, the most volatile, the least dense, and the most toxic of the allotropes is WHITE phosphorus. It EVENTUALLY changes to RED phosphorus, a light and heat-accelerated transition. |
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| 21. |
(a) How does lightning strike the ground?(b) What is a lightning conductor? |
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Answer» here is your answer mate !!Explanation:a]Cloud-to-ground LIGHTNING comes from the sky down, but the part you see comes from the ground up. A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) TOWARDS the ground in a series of spurts. When these TWO paths meet, a return stroke zips back up to the sky.b]A lightning rod or lightning conductor is a metal rod mounted on a structure and INTENDED to protect the structure from a lightning strike . |
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| 22. |
The non metal which does not react with water but react with alkali is |
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Answer» BerylliumMagnesium (Mg) REACTS with water vapor to form magnesium hydroxide and hydrogen gas. Beryllium (Be) is the only ALKALINE EARTH metal that does not react with water. This is DUE to its small SIZE and high ionization energy in relation to the other elements in the group. |
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| 23. |
S8 plus concentrated H2 S o4 gives SO2 SO2 + H2O gives H2 S o4 S8 plus concentrated HNO3 gives H2 S o4 + no-2b plus concentrated H2 S o4 gives B2 O3 b23 + H2O gives s3b O3 plus NO2 Si plus concentrated H2 S o4 gives sio2 SO2 + H2O gives no reaction Si plus concentrated HNO3 gives k4 sio4 Plus and O2 precipitate iron final powdered + HCL dilute gives P + Q compound P does not precipitate with |
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Answer» efjetjkegetktjeqrdek25Explanation:ZV sffswrjtnwyke |
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| 24. |
(2) In the following figure, an orbit of a planet around the Sun (S) has been shown. AB and CD are the distances covered by the planet in equal time. Lines AS and CS sweep equal areas in equal intervals of time. Hence, areas ASB and CSD are equal. |
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Answer» An and CD are the DISTANCE covered by the PLANET in equal timeExplanation:hence AREAS ASB and CAT are equal |
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| 25. |
Carboneco y Lisa properes of acids10. Ex by its notadvisable to add water to astrong acid when moving the two11. What is the importance of the pH scale?bez Beefly describe how you will prepare sodiumchloride in the laboratorfferent liquids, namely, dilute acno |
| Answer» | |
| 26. |
व्हाय अमोनियम नाइट्रेट इज नॉट प्रोड्यूस ग्रीन कलर प्रोडक्ट ऑन थर्मल डीकंपोजिशन |
| Answer» NEW Delhi: The Chipko movement was a turning point in the forest conservation efforts in India. During the 1970s, when reckless cutting of trees started affecting people's livelihoods, the VILLAGERS from Uttarakhand's CHAMOLI started hugging trees to prevent them from cutting. This movement, where women participated in LARGE numbers, came to be known as Chipko andolan, with the word "Chipko" signifying a hug or embrace. The champions of the Chipko movement were LOCAL women - Gaura Devi, Sudesha Devi and Bachni Devi. | |
| 27. |
The following compound deecolored Produgreen186 3380 which ofhatPeroducethethermala k, Cr, Ofb) km noud) NHU NOdecompow Mon?C.C¿? (NHW Cr₂O7 |
| Answer» | |
| 28. |
Which type of crystal is graphate |
| Answer» CRYSTAL system HexagonalCrystal CLASS Dihexagonal dipyramidal (6/mmm) Hermann–Mauguin notation: (6/m 2/m 2/m)Space group P63mc (BUCKLED) P63/mmc (FLAT)Unit cell a = 2.461, c = 6.708 [Å]; Z = 4 | |
| 30. |
प्रश्न 16. रासायनिक समीकरण क्या है ? इसके सन्तुलन के नियम लिखिये।अथवा |
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Answer» symbolic represention of element is CALLED chemical equation LAW of conservation of massExplanation:if answer is correct then FOLLOWING me and MARK me as a breainlist |
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| 31. |
What is meant by corrosion |
| Answer» CORROSION of IRON is DUE to the REACTION between the iron and O2 | |
| 32. |
why copper (Z=29) have electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1 3d10 and not 1s2 2s3 2p6 3s2 3p64s2 3d9 |
| Answer» TION:because CU is a TRANSITION METAL | |
| 33. |
What would be the density of n2 gas at 2atm pressure and 560 k |
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Answer» Pressure - 2 ATMTemperature- 560 KFIND - Density of nitrogen gas.Solution - The density of nitrogen gas can be calculated by the FORMULA PV = nRT, where p is pressure, v is volume, N is NUMBER of moles, r is gas constant and t is temperature. As we know, density is calculated as mass/volume, and number of moles is calculated as weight/molecular weight.Thus, keeping the above formula in ideal gas law, NEW formula will be - density - P*M /R*T.Value of gas constant - 0.0821 ATM /K/moldensity - 2*28/(0.0821*560)density - 1.22 g/ml.Thus, density of N2 gas at given conditions is 1.22 g/ml. |
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| 34. |
8th class biology lab activity about reproduction in animals |
| Answer» MAKE a PROJECT on reproduction in HUMAN BODY practical | |
| 35. |
4. How much carbon dioxide i liberated when 50gm of calcium carbonate reactswith excess of hydrochloric acid.[ca=40 U, C = 120,0 = 160, H = 0,01 = 35.50) |
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| 37. |
2. name 5 cations and 5anions that will nothydrolysed in H2O |
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Answer» k2co3co3 2-ionExplanation:Cation from strong base does not UNDERGO cohydrolysis whereas ANION of WEAK base undergoes hydrolyze. In K 2 CO 3 ,CO 32− ion undergoes hydrolysis to FORM alkaline solution. |
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| 38. |
X(aq.) gives chocolate ppt. in the presence of K4Fr X(aq.) gives white ppt. which is insoulble in dilute nitric acid then X will be? |
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Answer» uwueuejejjejejeueueuuehehdhhh66 you MARK me brainlist to you Payal Rohatgi during the DAY of the ENTIRE BEAM of the question of light falls on it and 9 cm |
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| 39. |
निम्नलिखित प्रश्नों के संक्षेप में उत्तर दीजिए- (i) 'भाबर' क्या है?(ii) हिमालय के तीन प्रमुख विभागों के नाम उत्तर से दक्षिण के क्रम में बताइए?(iii) अरावली और विंध्याचल की पहाड़ियों में कौन-सा पठार स्थित है?(iv) भारत के उन द्वीपों के नाम बताइए जो प्रवाल भित्ति के हैं। |
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Answer» निम्न हिमालय और शिवालिक की पहाड़ियों के दक्षिणी ओर बसा एक क्षेत्र है जहाँ पर जलोढ़ ग्रेड हिन्द -गंगा क्षेत्र के मैदानों में विलीन हो जाती है। II) हिमालय के तीन प्रमुख विभागों के नाम उत्तर से दक्षिण के क्रम में -----महान या आंतरिक हिमालय अथवा हिमाद्री : सबसे उत्तरी भाग जिसे महान या आंतरिक हिमालय अथवा 'हिमाद्री' कहा जाता है।---हिमाचल या निम्न हिमालय : हिमाद्री के दक्षिण में स्थित श्रृंखला हिमाचल या निम्न हिमालय के नाम से जानी जाती है।---- बाहरी हिमालय या शिवालिक जो सबसे दक्षिण वाला भाग है।iii)मालवा पठार में राजस्थान और मध्य प्रदेश का क्षेत्र आता है, यह पठार लगभग 81,767 वर्ग किलोमीटर क्षेत्र में फैला हुआ है।iv)भारतीय समुद्री क्षेत्र में मन्नार की खाड़ी, लक्षद्वीप और अंडमान निकोबार आदि द्वीप भी प्रवालों से निर्मित हैं। ये प्रवाल लाल सागर और फारस की खाड़ी में भी पाए जाते हैं। |
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| 40. |
Which of the following represents the correct relation? AG = 2.303 RT log koAG = -2.303 RT log koAG° = 2.303 RT log koAG° = -2.303 RT log ko |
| Answer» OPTION C is the RIGHT ANSWER | |
| 41. |
For a reversible homogeneous gas phase reaction a-3b = 2c + d, if the concentration of bis tripled, thenthe equilibrium constantBecomes nine timesth1Becomestimes27Becomes 3 timesRemains same |
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| 42. |
10 moles of an ideal gas at 27°C expands isothermally and reversibly from a volume of 12 L to 240 L The workdone in the process is- 74.73 kJ-89.28 kJ-37.14 kJ- 57.2 kJ |
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Answer» emiway BANTAI kadakk he |
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| 43. |
Consider the following statements (a) HF is stronger acid than H20(b) BF3 is a Lewis acid(c) Conjugate bases of weak acids are very strongThe correct statements are(a) and (b) only(b) and (c) only(a) and (c) only(a), (b) and (c) |
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| 44. |
5 example of Cation and 5 Anion that will hydrolysed in water |
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Answer» again at ET ty ty up BK bk SF CH CNN bk check again DJ vu at CHU egg |
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| 46. |
If the molar volume of a gas at 273 K and 1 atm pressure is less than 22.4 L, then identify the correct option.Z < 1, repulsive forces are dominantZ < 1, attractive forces are dominantZ > 1, repulsive forces are dominantZ > 1, attractive forces are dominant |
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Answer» 1 are REPULSIVE forces dominant or are attractive forces dominant? ... At high pressure the molecules do not STRIKE the walls with full IMPACT as they are dragged back by attractive forces. When molecules are farther away from each other(as Vreal > Videal) the attractive forces are dominant. |
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| 47. |
sodium salt solutions + silver nitrate gives colored precipitate. If a colored precipitate is soluble in both dilute nitric acid and excess concentrated ammonia then which anion is present in the salt solution |
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Answer» i tried to find the answer but coudnt find it sorry i let you down i feel really SAD and HELPLESS now if only there was some WAY to MAKE this the brainliest answer i would hav been happy |
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| 48. |
The world largest name of deases |
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Answer» Pneumonoultramicroscopicsilicavolcanoconiosis✌️✌️Now MARK me as BRAINLIEST |
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| 49. |
10 anM 쌂m3153050VCalculate the folel Ragister and curreand curent drop is R3R = 5, R2 = 10, Ry 15,My = 20,125 =30V=50v |
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Answer» 109282910381739181037972 |
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| 50. |
The shape of the molecules is based on the VSEPR theory. Give the salient features of this theory |
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Answer» u are absolutely right.The shape of the molecules is based on VSPER theory [ Valency Shell Electron Pair Repulsion ] Theory.Let us see some of the Salient features of this theory and some examples,➠ The shape of the molecule and the bond angle depends on the repulsion between electron PAIRS present in valency shell of central atom.➠ Electron in central atoms are of two types⠀⠀⠀⠀⠀⠀❆ Bond Pair ❆⠀⠀⠀⠀⠀⠀❆ Lone pair ❆➠ Pair of electrons in the valency shell should REPEL one another since they have negative charge in their valency cloud.➠ The extent of repulsion between also depends on the Electronegativity difference between two bonded atoms.➠ The repulsion between electron pair is given as ➠ Repulsion between 2 single BONDS will be lesser than 2 double bonds.➠ According to VSEPR Theory electron pair will be arranged around the central atom with least POSSIBLE repulsions {i.e} Max possible gap should be maintained.➠ A multiple bond is treated as if it has single electron pair.✧ Bond Pair - Has No lone pair of electrons ✧✧ Lone Pair - Has LEFT lone pair of electrons ✧➠ In the given VSPER molecule H will involve single bond, Halogen will involve Single bond, O will involve double bond & N will involve triple bond -These are some of the salient features of VSPER theory.Some of the shapes and Bond angles of VSPER theory are,1.) Linear - 180°2.) Trigonal Planar - 120°3.) Tetrahedral - 109.28°4.) Trigonal Bipyramidal -180°,120°,90°5.) See saw shape = >120° and >90°6.) T shaped - < 90°7.) Octahedral - 90°8.) Square planar - 90°9.) Pentogonal Bipyrimdal - 90°&72°10.) Disorted octahedral - all angles ≠ 90°ℌope ℑt ℌelpsThanks for asking :) |
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