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. |
Which of the following contains less moles of molecules?10 gram of glucose C6 H6 O12 or 10 gram of cane sugar C12 H22 O11 |
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Answer» c12 H22 o11 c660 ग्राम शो i think is very USEFUL |
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| 2. |
Which is not a base sodium hyd.magnesium hyd.copper carbonateammonium hyd. |
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| 3. |
An alkyne X on ozonolysis gives CH3 CH2 CHO &HCHO.What is the structure of X?What products are formed of it is oxidised by acidic KMNo4 solution. |
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Answer» Answer: |
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| 4. |
The density of 2 M aqueous solution of NaOH is 1.28g/cm3. The molality of the solution is [Given thatmolecular mass of NaOH = 40 g mol-'][NEET-2019 (Odisha)](1) 1.32 m(2) 1.20 m(3) 1.56 m(4) 1.67 m |
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Answer» Answer: |
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| 5. |
The partial pressur of ch3 OH (gj.co (g)and H2(g in equilibrium mixtureforthe reactionCo(g) + 2H2(g) - Ch2 oH (g) care 2.0 1.0atm respectively at 427&.TheValue of ke for decompositionCH3 OH to co and He isandof |
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Answer» Eurosport laglam protidin Lewisham Kaushal letter Explanation: |
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| 6. |
I am searching for UPSC serious candidate.anyone ?? |
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Answer» ANSWER:- Why are you GIVING THANKS if you WANT to report. TELL ME |
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| 7. |
A research balloon at ground level contains 12 L of helium (He) at a pressure of 725mmHg and a temperature of 30.00∘C. When the balloon has risen to its highest altitude, the volume increases to 28 L and the pressure decreases to 252 mmHg. What will be the temperature of the gas under these conditions?Use −273.15∘C for absolute zero.Report your answer to two significant figures. |
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Answer» Answer: A research balloon at ground level contains 12 L of helium (He) at a pressure of 725 mmHg and a temperature of 30.00 C. When the balloon has risen to its HIGHEST altitude, the volume increases to 28 L and the pressure decreases 252 mmHg. What will be the temperature of the gas under these conditions? . Use-273.15'C for absolute zero. . Report your answer to two significant figures Explanation: hi mark me brialiant |
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| 8. |
Prepare 0.02N Ca(oH)2 ,100ml. ? Wt=?Eq.wt=? |
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Answer» cxxsddfggvcxxcvfdhjbcdfghjjvc |
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| 9. |
Identifly the odd one out.A rose petals B Eosin C Beet D turmeric |
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Answer» TURMERIC is the answer |
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| 10. |
Aluminum ke विधूतिये शोधन में क्रयो light का क्या उपयोग है |
Answer» एलुमिनियम एक रासायनिक तत्व है जो धातुरूप में पाया जाता है। यह भूपर्पटी में सबसे अधिक मात्रा में पाई जाने वाली धातु है। एलुमिनियम का एक प्रमुख अयस्क है - बॉक्साईट। यह मुख्य रूप से अलुमिनियम ऑक्साईड, आयरन आक्साईड तथा कुछ अन्य अशुद्धियों से मिलकर बना होता है। बेयर प्रक्रम द्वारा इन अशुद्धियों को दूर कर दिया जाता है जिससे सिर्फ़ अलुमिना (Al2O3) बच जाता है। एलुमिना से विद्युत अपघटन द्वारा शुद्ध एलुमिनियम प्राप्त होता है।एलुमिनियम एक रासायनिक तत्व है जो धातुरूप में पाया जाता है। यह भूपर्पटी में सबसे अधिक मात्रा में पाई जाने वाली धातु है। एलुमिनियम का एक प्रमुख अयस्क है - बॉक्साईट। यह मुख्य रूप से अलुमिनियम ऑक्साईड, आयरन आक्साईड तथा कुछ अन्य अशुद्धियों से मिलकर बना होता है। बेयर प्रक्रम द्वारा इन अशुद्धियों को दूर कर दिया जाता है जिससे सिर्फ़ अलुमिना (Al2O3) बच जाता है। एलुमिना से विद्युत अपघटन द्वारा शुद्ध एलुमिनियम प्राप्त होता है।एलुमिनियम धातु विद्युत तथा ऊष्मा का चालक तथा काफ़ी हल्की होती है। इसके कारण इसका उपयोग हवाई जहाज के पुर्जों को बनाने में किया जाता है। भारत में जम्मू कश्मीर, मुंबई, कोल्हापुर, जबलपुर, रांची, सोनभद्र, बालाघाट तथा कटनी में बॉक्साईट के विशाल भंडार पाए जाते है। उड़ीसा स्थित नाल्को (NALCO) दुनिया की सबसे सस्ती अलुमिनियम बनानेवाली कम्पनी है[1]।Explanation: PLEASE follow me and MARK me in BRAINLIST ❣️ |
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| 11. |
Which of the following have d s configuration a)Sc3+ b)Ti4+ c)V5+ d)all of the above |
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Answer» MARK ME AS BRAINLIEST.
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| 12. |
What would ceasium astotide look like |
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Answer» It should be a WHITE CRYSTALLINE SOLID |
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| 13. |
5. n = 4 से कितनी उपकक्ष (कक्षक) संलग्न होती हैअथवा |
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Answer» ऐसी संख्या जो किसी परमाणु में उपस्थित इलूक्ट्रान के कोश , उपकोश , कक्षक और इलेक्ट्रॉन कि चक्रण की दिशा को व्यक्त करता है,उसे क्वांटम संंख्याए कहते हैं। |
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| 14. |
In the reaction P4 + 30 h + 3 H2O gives rise 3 h2po 2 + ph3 Phosphorus is undergoing |
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Answer» the answerr Explanation: 2nah 3apks the answer is a EASU |
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| 15. |
What is mole concept? |
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Answer» Answer: The mole is an amount unit SIMILAR to familiar units like pair, dozen, gross, ETC. It PROVIDES a specific measure of the number of atoms or molecules in a bulk sample of matter. A mole is DEFINED as the amount of substance containing the same number of discrete entities (atoms, molecules, IONS, etc.) |
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| 16. |
What is an atom????????????what are polyatomic ions? give examples |
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Answer» Answer: Polyatomic ions are ions which consist of more than one atom. For EXAMPLE, nitrate ion, NO3-, CONTAINS one nitrogen atom and THREE oxygen atoms. The atoms in a polyatomic ion are usually COVALENTLY bonded to one another, and therefore stay together as a single, charged unit. Explanation: Hope it helpful ✌️✌️✌️ |
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| 17. |
ᗯᖇITᗴ ՏᑕIᗴᑎTIᖴIᑕ ᖇᗴᗩՏOᑎ Oᑎ ᖴOᒪᒪOᗯIᑎᘜ :-ᘜᖇᗩᑭᕼITᗴ IՏ ᑎOT ᑌՏᗴᗪ Iᑎ OᖇᑎᗩᗰᗴᑎTՏ |
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Answer» Answer: DUE to its brittle nature it breaks it is not malleable and can't DRAWN into wires ALSO |
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| 18. |
When 3.0 g of carbon is burnt in 8.00 g oxygen. 11.00 g ofcarbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00g of carbon is burnt in 50.00g of oxygen? which law of chemical combination will govern your answer? |
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Answer» Answer: As PER the given condition, when 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. Therefore, the law of conservation of mass is PROVED. Then, it also depicts that the carbon dioxide CONTAINS carbon and oxygen in a fixed ratio by mass, which is 3:8. C + O2 ---> CO2 3 g + 8 g ---> 11 g Here mass of rectants = mass of products So law of conservation of mass is used. Now here , Carbon and oxygen combine in the ratio 3:8. So when 3 g of Carbon is burnt in 50 g of oxygen,only 8 g of oxygen will react. So same, 11 g of Carbon dioxide will be produced Here, the law of CONSTANT PROPORTIONS is used to get the answer. |
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| 19. |
डी कक्षा की आकृति कैसी होती है |
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Answer» इनकी आकृति द्विडम्बलाकार होती है , ये सभी कक्षक दिशात्मक होते है। पांच d कक्षकों में से 3d कक्षक (DXY , dyz ,dzx )की पालियां अक्षों के मध्य में स्थित होती है और इन्हें t 2G कक्षक कहते है। Explanation: Hope it HELPS u…mark as a brainliest |
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| 20. |
Find the molarity and strength of given KMnO4 solution. You are provided with M/20 oxalic acid solution.with full observation table and calculation |
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Answer» EUROPEAN fiehejwklwksndnejrjrhr |
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| 21. |
what is precipitation reaction???Noooooo ___(ー_ー゛) |
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Answer» Answer: A precipitation reaction REFERS to the formation of an INSOLUBLE salt when two SOLUTIONS containing soluble salts are combined. The insoluble salt that falls out of solution is KNOWN as the precipitate, hence the reaction's name. good afternoon |
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| 22. |
C. State and explain Le Chatelier's principlewith reference to1. change in temperature2. change in concerntration. |
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Answer» Le Chatelier's principle is an observation about chemical equilibria of reactions. It states that CHANGES in the TEMPERATURE, pressure, volume, or concentration of a SYSTEM will RESULT in predictable and opposing changes in the system in order to achieve a new EQUILIBRIUM state. |
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| 23. |
What is the difference between cycas and mango plant?? |
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Answer» Answer: Cycus tree Mango tree It is a saprophytic plant BODY and appears LIKE a SMALL palm tree. It is a TROPICAL deciduous tree. Grows up to a height of 8-15 feet. Grows up to a height of 115-130 feet. The presence of endophytic algae, MAKE the roots look like swollen as coral. It bears fruits in the hot climate. Explanation: |
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| 24. |
Why do we apply oil on iron tools kept in storage ? |
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Answer» because it PREVENTS from Rusting Explanation: HOPE it HELPS you |
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| 25. |
Give reasona) silver article become black after some time. |
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Answer» Answer: The SILVER article becomes black after sometimes when exposed to AIR because silver reacts with SULPHUR which is present in the ATMOSPHERE and then forms silver sulphide. Thus the layer of this silver sulphide is formed on the surface of the silver article so they appear as dull or black. |
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| 26. |
Science journal solution of 10th std |
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Answer» Answer: Explanation: hope it HELPS you |
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| 27. |
Write any 10 informative points about Chhattisgarh for project no spams. |
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Answer» Answer: Explanation: Chhattisgarh is a state located in the region of CENTRAL India. Formerly part of Madhya Pradesh, it was granted statehood on November 1, 2000. It is the 9th-largest state in India, with an area of 135,192 km2 (52,198 SQ mi). As of 2020, it has a POPULATION of roughly 29.4 million, making it the 17th most populated state in the country.[7] The state was formed by the partition of ten Chhattisgarhi and six Gondi-speaking districts in the southeast of Madhya Pradesh.[8][9] Its capital CITY is Raipur. It borders 7 states – Uttar Pradesh to the north, Madhya Pradesh to the NORTHWEST, Maharashtra to the southwest, Jharkhand to the northeast, Odisha to the east, and Telangana and Andhra to the south.[10] Currently, it comprises 28 districts. |
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| 28. |
What is cell ? how many types of cells are there ? |
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Answer» Answer: CELLS are of TWO TYPES: EUKARYOTIC, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular Explanation: i hope u can understand my answer... |
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| 29. |
What is tetrahedral or octahedral spaces, explain their importance |
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Answer» A tetrahedral SITE lies in the center of a 4-atom cluster within the crystal. ... An OCTAHEDRAL site is a space at the center of a cluster of six atoms that form an octahedron. Explanation: here is your |
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| 30. |
Copper sulphate + iron = ferrous sulphate +copper.. give chemical reaction |
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Answer» Answer: IRON displaces copper IONS from an AQUEOUS solution of copper sulphate. It is a single displacement reaction of one metal by another metal.In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric ion (Cu2 +) is converted into metallic copper. Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + CU (s). |
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| 31. |
Which compound has -0.5 oxidation state of oxygen |
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Answer» Answer: This is an electrically neutral compound, so the SUM of the oxidation states of the hydrogen and oxygen must be ZERO. ... Determining oxidation states. Element Usual oxidation state Exceptions Oxygen Usually -2 Peroxides and F2O (see below) Hydrogen Usually +1 Metal hydrides (-1) (see below |
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| 32. |
2 लिटर दूध का30 दिन उपयोग |
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Answer» नही हो सक्ता है ब्रॉ..ओके |
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| 33. |
Why statis friction is more than sliding friction |
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Answer» static friction Is greater than sliding friction because when an obj is moving during this motion in two surfaces . The MAGNITUDE of sliding friction is equal to STARTING friction REDUCED by action of additional WORK associated with the sliding body. Explanation: here is your answers |
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| 34. |
Stereochemistry of polyacrynitrile |
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Answer» stereochemical CONFIGURATION of polymers. As for POLYACRYLONITRILE. (PAN), the AUTHORS (1,2,3) have measured the NMR spectra in NaCNS-. Hope this helps you mate! |
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| 35. |
डी कक्षक की आकृति कैसी होती है |
Answer» d कक्षक :d उपकोश s कक्षकों से मिलकर बने होते है ये कक्षक DXY , dyz ,dz2 , dx2y2 , dzx होते है। इनकी आकृति द्विडम्बलाकार होती है , ये सभी कक्षक दिशात्मक होते है। |
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| 36. |
Complete the following reactions Mg + N2 +Δ Mg + H2O +Δ Be + 02 → |
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Answer» Δ Mg + H2O + Δ Be + 02 |
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| 37. |
Define alkane and its general gormula |
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Answer» Answer: ALKANES, alkenes and alkynes are simple hydrocarbon chains with no functional groups. ... Alkanes have the general formula of CNH2N+2 where n is the number of CARBON atoms. Alkenes have the general formula CnH2n. The general formula for alkynes is CnH2n-2. Explanation: Mark me as BRAINLIEST PLEASE and give thanks please |
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| 38. |
V. The hourly energy requirements of anastronaut can be satisfied by the energyreleased when 34 grams of sucrose are“burnt” in his body. How many gramsof oxygen would be needed to be carriedin space capsule to meet his requirementfor one day?(Ans. : 916.21 g)3.1 IntroductionThere has bein the techniquessubstances. Inlook into basicpurificationChemical subststage |
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Answer» HI hi Explanation: |
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| 39. |
$\mathrm{C}\mathrm{a}\mathrm{C}\mathrm{O}_3\left(\mathrm{s}\right)\to \mathrm{C}\mathrm{a}\mathrm{O}\left(\mathrm{s}\right)+\mathrm{C}\mathrm{O}_2(\mathrm{g})$ |
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| 40. |
For a reversible reaction at 298 K the equilibriumconstant K is 200. What is the value of ACⓇ at 298 K!O-13.13 kcal-0.13 kcal- 3.158 kcal- 0413 kcal |
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Answer» HI hi Explaneathqauke BRO |
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| 41. |
Tricks to write elements from 39 to 48 in modern periodic table |
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| 42. |
Who was the first indian to put forward the particulate nature of matter |
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Answer» The idea that matter was built of DISCRETE building blocks, the so-called PARTICULATE theory of matter, independently appeared in ANCIENT Greece and ancient India among Buddhists, Hindus and Jains in 1st-millennium BC. Ancient philosophers who proposed the particulate theory of matter include Kanada |
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| 43. |
A swimmer coming out from a pool iscovered with a film of water weighingabout 18g. How much heat must besupplied to evaporate this water at298 K ? Calculate the internal energy ofvaporisation at 298K.A H® for waterat 298K= 44.01kJ mol-1vap |
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Answer» Answer: A swimmer coming out from a POOL is covered with a film of water weighing about 18g. How much heat must be supplied to EVAPORATE this water at 298 K ? Calculate the INTERNAL energy of vaporisation at 298K. |
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| 44. |
_ is my wife and_ are my children |
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Answer» Answer: She , they Explanation: HOPE hope it HELPS please mark me as brainliest and THANK my ANSWE |
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| 46. |
A 1.50g sample of a compound containing only carbon and hydrogen is found to contain 1.198g of carbon. Determine the empirical formula for this compound. |
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Answer» hdhdhdhdhhshdhdhdhdhdhdhdhd |
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| 47. |
When magnesium is left in moist air for several hours,the metal surface tarniahes. Why? Explain. |
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Answer» Answer: When MAGNESIUM is left in moist AIR for several HOURS, the METAL surface tarnishes due to the formation of an oxide or hydroxide layer on its surface. Explanation: hope it helps u...mark as a brainliest |
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| 48. |
How can ammonia have atomic number, its a molecule not element |
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| 49. |
CodicalTime required tobecome cross markHONaso,HCConcentraof ,200044B30с40DSO20.1Graph: Plot a groph of it against concentration of sodium thiosulphate.RERote of reaction (1/0) is |
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Answer» Explanation: |
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