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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.
| 2151. |
Q.13. Which of the following is thecorrect balanced chemical equation?OBLIH + A12C162LIAIH4 + 6LICIO LiH + 8A12C168LIAIH4 + LiciO 8LiH + A12C166LIAIH4 + 2LiciO 2LİH + A12C16LiAIH4 + LiciThiri |
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| 2153. |
How can a non- polar molecule induce a dipole in a nearby non- polar molecule? |
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Answer» ʜᴇʀᴇ's ʏᴏᴜʀ ᴀɴsᴡᴇʀ:- ɪɴ ᴀ ɴᴏɴ - ᴘᴏʟᴀʀ ᴍᴏʟᴇᴄᴜʟᴇ, ᴛʜᴇʀᴇ ᴍᴀʏ ʙᴇ ɪɴsᴛᴀɴᴛᴀɴᴇᴏᴜs ᴅɪᴘᴏʟᴇ ᴄʀᴇᴀᴛᴇᴅ ʙʏ sᴘᴇᴄɪғɪᴄ ᴘᴏsɪᴛɪᴏɴs ᴏғ ᴇʟᴇᴄᴛʀᴏɴs. ᴛʜɪs ɪɴsᴛᴀɴᴛᴀɴᴇᴏᴜs ᴅɪᴘᴏʟᴇ ᴄᴀɴ ɪɴᴅᴜᴄᴇ ᴀ ᴅɪᴘᴏʟᴇ ɪɴ ᴀ ɴᴇᴀʀʙʏ ɴᴏɴ- ᴘᴏʟᴀʀ ᴍᴏʟᴇᴄᴜʟᴇ.! ʜᴏᴘᴇ ᴛʜɪs ʜᴇʟᴘs ʏᴏᴜ.!☺ |
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| 2154. |
Please solve this correctly |
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Answer» Answer: this is grignad REACTION |
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| 2155. |
What is octahedral complex ? |
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Answer» Answer: octahedral MOLECULAR geomatory describes the SHAPE of compounds where in 6 ATOMS or groups of atoms or LIGANDS are symmetrically aranged around a central atom |
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| 2156. |
Given MgCl2, AlCl3, SiCl4, PCl3, S2Cl2, Cl2. Arrange these compounds in the order of increasing ionic character of their bonds. |
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Answer» THEY ALL ARE ARRANGED ONLY |
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| 2157. |
Take your time and solve.....But don't give irrelevant messages otherwise i will report your answer.... If u give correct answer u will get many points and i will mark u a brainliest.... |
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| 2158. |
Solve the question number 22 |
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| 2159. |
5.No.2 De fine chemical equation andTypes? |
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Answer» Different Types of CHEMICAL Reactions – Combination, DECOMPOSITION, Combustion, Neutralization & Displacement Reactions. During a chemical reaction, the substances that react are known as reactants whereas the substances that are formed during a chemical reaction are known as products. bye frnd |
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| 2160. |
A plot of p1 or p2 vs the mole fractions x1 & x2 is given below .In this figure, lines 1 & 2 pass through the point for which * |
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Answer» Answer: given below .In this figure, lines 1 & 2 PASS through the point for which * |
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| 2161. |
CH3COCOC6H5+CH3MGBR+H2O=? |
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Answer» Explanation: Ch4+MgBr(OH) if you are SATISFIED with my answer.dont FORGET to follow me.and mark me as BRAINLIEST |
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| 2162. |
Which of the following is or are true.1) The difference in celcius scale is equal to the the difference on Fahrenheit scale.2) The difference in celcius scale is equal to the difference in Kelvin scale.3) Humidity near the beach is more than in desert.4)Rate of evaporation does not depend on temperature.This is a multiple correct option type question. ther can be one or more than one correct answer. please answer. |
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Answer» Answer: 4. the RATE of EVAPORATION does not dependon TEMPERATURE |
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| 2163. |
Gandhiji ke kurti Mein ____ Ki baithak Hone Wali thi |
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| 2164. |
An example of a liquidmetal and a liquid nonmetal is |
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Answer» Answer: Hola! Here is your answer mate____☺️ Liquid metal example: Mercury (HG)Liquid NON Metals example : BROMINE (Br)Hope it helps you _____✌️✌️✌️______ Please mark it as a BRAINLIEST. |
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| 2165. |
Plz tell it fast guys.... |
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Answer» MOLES of of OXYGEN=no.atom of oxygen /NA =2.58×10^24/6.02×10^23 =0.428×10 =4.28moles of O2 |
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| 2166. |
Rahul took some zinc granules in a test tube and added dilute HCI to it. He observed that the colourof the zinc granules changed to |
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Answer» it will change into any colour Explanation: Which class QUESTION is this??? Mark me as BRAINLIEST answer and follow me... |
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| 2167. |
Matter can change from one state to another by change in ...................... *TemperaturePressureMatter can not change its state.None of these |
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Answer» temperature Explanation: |
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| 2168. |
A 10 g of NaCl dissolved in 106g of the solution, its concentration is |
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Answer» Answer: Concentration Of NaCl in solution = weight of element in ONE molecule of compound / MOLECULAR weight of compound× 100% =10/106×100% =9.4 % PLEASE mark it brainliest as I have worked hard on it. |
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| 2169. |
Areas showing White colour in map |
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Answer» Explanation: white patchon a MAP means that area has only scrubs as vegetation and TREES are scattered . PLEASE MARK BRAINLIEST. Explanation: ... Colors stand out from the map and provide IDENTIFICATION to MANY features such as vegetation and WATER |
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| 2170. |
Why a bottle of perfume on opening, evolves an odour which can be sensed over a long distance ? *1.Due to high diffusibility of gases2.Due to high compressibility of gases3.Due to both of above4.No option is correct |
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Answer» Bottle of PERFUME on opening EVOLVES an odor that can be SENSED over a long distance due to the HIGH diffusibility of gases. |
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| 2171. |
दूध पानी में वसा का क्या नाम था |
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| 2172. |
5) A system absorb 640J heat and does work of 260J, the change ininternal energy of the system will bea) +380Jb)-380J c) +900J d)-900J |
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Answer» Explanation: The SYSTEM absorbs 640 J and the work system does on surroundings is 260J. THEREFORE by the first law of THERMODYNAMICS, the INTERNAL energy of the system increases by: △U=q−W=(640−260)=+380 J. PLEASE FOLLOW ME AND SELECT MY ANSWER AS BRAINLIEST AND I WILL DEFINITELY FOLLOW YOU.THANK YOU I HOPE THIS HELPS YOU LOT MY MATE.... |
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| 2173. |
Heavy water is used as ...........in nuclear reactors. |
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Answer» Explanation: Heavy water is used in certain types of NUCLEAR reactors, where it acts as a NEUTRON MODERATOR to slow down neutrons so that they are more likely to react with the fissile uranium-235 than with uranium-238, which captures neutrons without FISSIONING. The CANDU reactor uses this design. Solubility in water: Miscible Chemical formula: D; 2O Dipole moment: 1.87 D.. |
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| 2174. |
Good morning!The potential difference between cathode and anode in a cathode ray tube is V. The speed acquired by the electrons is proportional to....?Dekho readymade answer mat dena...! Yani ki Google wala।। |
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| 2175. |
how can we identify acids, bases, salts with natural indicators explain with aim, apparatus, procedure, observation and result |
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Answer» Answer: Natural Indicator is a type of indicator that can be found naturally and can determine whether the substance is an ACIDIC substance or a basic substance. Some examples of natural indicators are red cabbage, turmeric, grape juice, turnip skin, curry POWDER, cherries, beetroots, ONION, tomato, etc. Some flowers LIKE hydrangeas can determine the acidity or basicity of the soil. These flowers become blue if the soil is acidic, purple if the soil is neutral and pink if the soil is basic. The intensity of the color depends on the amount of acid or base present in the soil. Soil which is highly acidic bears deep blue flowers, whereas soil which is highly basic yields deep pink flowers. These natural indicators are used to detect the hydrogen Explanation: plese MAKE me brilanist |
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| 2176. |
Before we burn magnesium ribbon why should we clean it? |
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Answer» Answer: because after that layer of MAGNESIUM OXIDE can be removed in order to get the DESIRED CHEMICAL reaction Explanation: MARK IT AS BRAINLIEST |
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| 2177. |
When heat is constantly supplied by a burner to boiling water then the temperature of water during vaporisationa) rises very slowlyb) rises rapidly until steam is producedc) first rises and then becomes constantd) does not rise at allplease give me the correct answer |
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Answer» Answer: rises rapidly until STEAM is produced PLEASE MARK ME BRAINLIEST |
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| 2178. |
Halogen that can react with an inert gas is -(a) i 2(b) Br2(c)Cl(d) F2 |
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Answer» Flourine Explanation: Fluorine is ONE of the most reactive elements: it is the only element more electronegative than oxygen, it ATTACKS otherwise-inert materials such as glass, and it forms compounds with the usually inert NOBLE gases. |
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| 2179. |
Hello!!!✌☺️What were the limitations of Döbereiners classification ??? |
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Answer» Limitations of Dobereiner's classification of elements was that it failed to arrange all the then KNOWN elements in FORM of traids of elements having similar chemical properties. His classification was not application to all known elements but was limited only to a few elements.Dobereiner's COULD identify only three traids from the elements known at that time.So, his classification of elements was not more successful. please mark as BRAINLIST answer and follow me |
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| 2180. |
डांस फॉर न्यू नेम ऑफ द सब्सटेंस इस कॉल्ड डेंसिटी डेंसिटी कॉल टू मच माय वॉल्यूम अन इन ऑर्डर आफ इंक्रीजिंग डेंसिटी एग्जॉल्टेड फ्रॉम चेन्नई वाटर चौक कॉटन एंड |
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Answer» Answer: PLEASE WRITE this TYPES of questions in English don't write like this |
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| 2181. |
Why is bronze preferred over copper metal for making statues |
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Answer» Answer: As bronze METAL is harder and more malleable in NATURE it is used to make STATUES.It ALSO has the property of ductility and can EASILY be shaped into a statue.Therefore,bronze is used for making statues than copper. please mark me as branliest... Have a great day.... |
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| 2182. |
IUPAC name of is :-(1) Acetic anhydride(2) Methanoic anhydride(3) Ethanoic methanoic anhydride(4) Ethanoic anhydride |
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| 2183. |
सम आयन प्रभाव क्या है |
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Answer» Answer: COMMON ion effect and BUFFERS. The common ion effect describes the effect on equilibrium that occurs when a common ion (an ion that is already contained in the SOLUTION) is added to a solution. The common ion effect GENERALLY decreases solubility of a solute. please make me as brainliest |
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| 2184. |
The one answering with proper explanation will be marked as brainliest and 5⭐rating |
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| 2185. |
When a functional group has both +I and -R effectwhich is predominant |
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Answer» - R GROUP will be more DOMINANT than + I Explanation: Hope the answer will HELP you |
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| 2186. |
How we will desite this reaction is sn1 sn2 e1ande2 |
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Answer» where is the REACTION bro first PROVIDE the reaction |
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| 2187. |
The diagonal relationship phenomenon is not observed after answer in groups |
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Answer» Answer: The chemistry of LI has similarities to that of Mg, the chemistry of Be has similarities to that of AL, and the chemistry of B has similarities to that of Si. These are called diagonal relationship.( It is not as noticeable after B and Si ) ... Mg, as WELL as other Group 2 elements, also FORM nitrides |
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| 2188. |
निर्मल ALCL3 की उपस्थिति में बेंजीन क्लोरोमिथेन के साथ अभिक्रिया करती है |
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Answer» बेंज़ीन या धूपेन्य एक हाइड्रोकार्बन है जिसका अणुसूत्र C6H6 है। बेंजीन का अणु ६ कार्बन परमाणुओं से बना होता है जो एक छल्ले की तरह जुड़े होते हैं तथा प्रत्येक कार्बन परमाणु से एक हाइड्रोजन परमाणु जुड़ा होता है। बेंजीन, पेट्रोलियम (क्रूड ऑयल) में प्राकृतिक रूप से पाया जाता है। कोयले के शुष्क आसवन से अलकतरा तथा अलकतरे के प्रभाजी आसवन (fractional DISTILLATION) से बेंजीन बड़ी मात्रा में तैयार होता है। प्रदीपन गैस से प्राप्त तेल से फैराडे ने 1825 ई. में सर्वप्रथम इसे प्राप्त किया था। मिटशरले ने 1834 ई. में बेंज़ोइक अम्ल से इसे प्राप्त किया और इसका नाम बेंजीन रखा। अलकतरे में इसकी उपस्थिति का पता पहले पहल 1845 ई. में हॉफमैन (Hoffmann) ने लगाया था। जर्मनी में बेंजीन को 'बेंज़ोल' कहते हैं। बेंजीन रंगहीन, मीठी गन्थ वाला, अत्यन्त ज्वलनशील द्रव है। इसका उपयोग एथिलबेंजीन्न और क्यूमीन (CUMENE) आदि भारी मात्रा में उत्पादित रसायनों के निर्माण में होता है। चूँकि बेंजीन का ऑक्टेन संख्या अधिक होती है, इसलिये पेट्रोल में कुछ प्रतिशत तक यह मिलाया गया होता है। यह कैंसरजन है जिसके कारण इसका गैर-औद्योगिक उपयोग कम ही होता है। |
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| 2189. |
Benzen ka empericle formula |
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Answer» Answer: The empirical formula of BENZENE, C6H6 C 6 H 6 is CH. As we known that empirical formula shows the SIMPLEST whole number ratio of the atoms... please mark me as BRAINLIEST |
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| 2190. |
संकरण के आधार पर NH3 अणु की आकृति (अथवा)(OR) |
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Answer» Write an application to your TUTION MASTER REQUESTING to teach from next WEEK.... |
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| 2191. |
Rohan was playing in his room .suddenly there was a powers cut he observed dust particles dancing draw the beam of sun light coming from the window with phenomenon is responsible for this |
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Answer» Explanation: HEY MATE ITS YOUR ANSWERTHE PHENOMENON IS TINDAL EFFECTABOUT TINDEL EFFECT- Description DescriptionTyndall effect, ALSO called Tyndall PHENOMENON, scattering of a BEAM of light by a medium containing small suspended particles—e.g., smoke or dust in a ROOM, which makes visible a light beam entering a window. The effect is NAMED for the 19th-century British physicist John Tyndall, who first studied it extensively. HOPE IT WILL HELP YOU :) |
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| 2193. |
The first ionizationsenergy of Na is 495.9KJ/mole, what is thelongest wave length oflight that could removean electron from Na?(with proper steps please |
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Answer» a) Explanation: IONIZATION energy of Na is 495.9KJ/MOLE 1 mole= 495.9KJ 1 atom= 495.9KJ/Na = 495.9/6.023*10^23 = hC/λ λ= = |
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| 2194. |
Why we wash copper utensil with tamarind or lemon juice |
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Answer» Answer: Tarnishing in COPPER is due the chemical reaction between the MOLECULES on the copper and the surrounding AIR. This chemical reaction changes the color of the copper.Personally, I think that lemon+salt or TAMARIND are the best copper CLEANERS – here's how I clean my copper vessels. |
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| 2196. |
The electronic configuration of an element is 1s2,2s2,2p6,3s2 ,the value of spin quantum number of last electron is |
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| 2198. |
The chemical definition of metal are?? |
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Answer» Answer: Hola! here is your answer________☺️ Explanation: a metal is an element that readily forms positive ions (cations) and has metallic BONDS. Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized ELECTRONS. ... The traditional DEFINITION focuses on the bulk properties of metals.Hope it helps you _____✌️✌️✌️_____ |
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| 2199. |
A saturated solution of carbon dioxide in water was made by bubbling the gas through 500g water at 40 degrees celsius. What is the approximate mass of carbon dioxide that dissolved? |
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Answer» Answer: Imagine adding a small amount of salt to a glass of water, stirring until all the salt has dissolved, and then adding a bit more. You can repeat this process until the salt concentration of the solution REACHES its natural limit, a limit determined primarily by the relative strengths of the solute-solute, solute-SOLVENT, and solvent-solvent attractive forces discussed in the PREVIOUS two modules of this chapter. You can be certain that you have reached this limit because, no MATTER how long you stir the solution, undissolved salt remains. The concentration of salt in the solution at this point is known as its solubility. The solubility of a solute in a particular solvent is the maximum concentration that MAY be achieved under given conditions when the dissolution process is at equilibrium. Referring to the example of salt in water: |
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| 2200. |
0.7 g of Na2CO3.xH2O were dissolved in water and the volume was made to 100mL, 20mL of this solution required 19.8 mL of N/10 HCl for complete neutralisation. The value of x is: please explain clearly...........I will mark u as brainlist |
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Answer» Answer: I know your answer about this Max SUM and answer of your the SUN is in 1928 point 8 ml of n slash 120 HCL of the complete oxygen of the value of x is please explain clearly I will explain you and the answer of this your question is 129 / point 194 Explanation: please make me as BRAINLIEST |
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