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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.
| 1151. |
____ are the homogeneous mixture of one metal with another or of a metal with a non-metal. |
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Answer» Answer: alloys are the HOMOGENEOUS MIXTURE of ONE METAL with another or of a metal with a non-metal. |
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| 1152. |
1.0 gm of CaCO3 was dissolved in HCl and the solution made up to 1000 ml with distilled water. 50 ml of the solution required 45 ml of EDTA solution for titration. 50 ml of hard water sample required 28 ml of EDTA and after boiling and filtering required 15 ml of EDTA solution. Calculate the hardness of water. |
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Answer» I couldn't able to UNDERSTAND your question |
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| 1153. |
Define ether and enlist its uses? |
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Answer» Answer: Ether is an extremely flammable chemical and one of the first anesthetics. Technically, it's any compound where an oxygen atom is bound to two carbons, called ALKYL GROUPS, on either side, as shown here. We can use the letter 'R' to REPRESENT the alkyl groups in a diagram of the molecule. |
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| 1154. |
Explain the difference between two types of plastics giving examples. |
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Answer» Explanation: I couldn't ABLE to understand your question |
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| 1155. |
What are lustrous in nature?plz answer fast u will get 60 points |
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Answer» Answer: gold silver Explanation: KEEP your HANDS clean regularly because MANY DISEASES can attack your body though you hands. Try to maintain good hygiene which will keep all the sickness away from your body. Do a regular body as well as dental checkups. Maintain your healthy weight and make sure it is under control. |
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| 1156. |
CH-CH₂ - Ni Hoffman reaneffzettaA 스CH3 - CH2N-CHhCtychlzCH₂CH₂CH3 |
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Answer» Answer: |
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| 1157. |
Assertion and Reason1). Assertion:- Atomic mass of aluminium is 27Reason:- An atom of aluminum is 27 times heavier than 1/12 th of the mass of the c-12 atomExplain |
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Answer» A): Atomic mass of aluminium is 27.. (R): An ATOM of aluminium is 27 times heavier than 1/12th of the mass of the C 12 atom. - A and R are correct, R explains the A. - A is correct, R is wrong. |
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| 1158. |
The volume of oxygen necessary for the complete combustion of 20L of propen is |
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Answer» Answer: The volume of oxygen necessary for the COMPLETE COMBUSTION of 20 L of propane is : 40 L. |
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| 1159. |
What are the properties of silk obtained from mulberry silk moth |
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Answer» Answer: The silk FIBRE from the cocoon of this moth is soft, LUSTROUS, and elastic and can be dyed in BEAUTIFUL colours. Explanation: |
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| 1160. |
Q6) State which of the following ions or radicals given below of non-metallic elements exhibit valency: 1- , 2- & 3-(a) Chloride(b) Bromide(c) Iodide(d) Nitrate(e) Hydroxide(f) Bicarbonate(g) Bisulphite(h) Bisulphate(i) Aluminate(j) Permanganate(k) Oxide(l) Sulphide(m) Sulphite(n) Sulphate |
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Answer» Answer: Ion Valency Chloride CL [[> widget id="15" <]] -1 Bromide Br [[> widget id="16" <]] -1 Iodide I [[> widget id="17" <]] -1 Nitrate [[> widget id="1" <]] [[> widget id="18" <]] -1 hydroxide [[> widget id="35" <]] [[> widget id="19" <]] -1 Bicarbonate [[> widget id="2" <]] [[> widget id="20" <]] -1 Bisulphite [[> widget id="3" <]] [[> widget id="21" <]] -1 Bisulphate [[> widget id="4" <]] [[> widget id="22" <]] -1 Aluminate [[> widget id="5" <]] [[> widget id="23" <]] -1 Permanganate [[> widget id="6" <]] [[> widget id="24" <]] -1 Oxide O [[> widget id="25" <]] -2 Sulphide S [[> widget id="26" <]] -2 Sulphite [[> widget id="7" <]] [[> widget id="27" <]] -2 Sulphate [[> widget id="8" <]] [[> widget id="28" <]] -2 Carbonate [[> widget id="9" <]] [[> widget id="29" <]] -2 Dichromate [[> widget id="10" <]] [[> widget id="30" <]] -2 Zincate [[> widget id="11" <]] [[> widget id="31" <]] -2 Plumbite [[> widget id="12" <]] [[> widget id="32" <]] -2 Phosphate [[> widget id="13" <]] [[> widget id="33" <]] -3 Phosphate Nitride N [[> widget id="34" <]] -3 |
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| 1161. |
When acids and bases dissolved in water ,these ions are formedA. Na+ and CI- ions B. Mg+2 and S04-2 . C. H+ and H30+ ions D. None of the above |
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Answer» Acids and bases DISSOLVE in WATER and, because they INCREASE the concentration of either protons or hydroxide ions, they suppress water self-ionization. Acids in water solution dissociate H+ ions. Base, when dissolved in water, produces OH– ion. hope it helps |
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| 1162. |
write name and chemical formula of monomers used in preparation of buna - s what are similarities between lanthanoides and actinides |
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Answer» Answer: कारखाना भेट अहवाल लेखन ? PLEASE answer me in full form MEANS big answer I REQUIRED this answer Explanation: कारखाना भेट अहवाल लेखन ? please answer me in full form means big answer I required this answer |
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| 1163. |
Write the bond line formulae of the following compound s(a) 3-methyloctane |
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Answer» Here's your answer Explanation: 3-Methyloctane | C9H20 - PubChem. Hope it HELPS you Pls MARK me the BRAINLIEST |
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| 1164. |
Ionic equation of first 20 elements |
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Answer» A worksheet, in the word's original meaning, is a sheet of PAPER on which one performs work. They come in many FORMS, most COMMONLY associated with children's school work assignments, tax forms, and accounting or other BUSINESS environments. Software is increasingly taking over the paper-based worksheet. |
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| 1165. |
Oxidation sate of Fe2(So403 |
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Answer» yajoalalalammNBH Explanation: najakalpalalalsnshbsbs |
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| 1166. |
Why has the black substances formed |
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Answer» Answer: This black substance formed on the surface is because of the process called surface oxidation. UPON heating, the copper metal melts gradually and turns black on the surface. This is because the copper powder present in the CHINA dish reacts with the ATMOSPHERIC oxygen and forms copper (II) oxide. Explanation: here is your answer if youlike my answer please follow |
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| 1167. |
Crystal Field Stabilization Energy for Hexacynoferric(III) Complex *A. -0.8 ∆°B. -1.2 ∆°C. -2.0 ∆° + 2PD. -0.4 ∆° + P |
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Answer» ELECTRONIC CONFIGURATION of 26^Fe : 26^Fe→ 1s^22s^22p^63s^23p^63d^64s^2 Electronic Configuration of 26^Fe^3 + : 26^Fe^3 + → 1s^22s^22p^63s^23p^63d^54s^0 . |
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| 1168. |
Q - 1 Explain two applications of floatation. |
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Answer» Submarines: BALLAST TANKS in submarine is filled with sea water so that it sinks. Icebergs floating on water. Swimming. Hot air balloon. Explanation: here is your answer if you like my answer PLEASE follow |
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| 1169. |
निम्न अभिक्रियाओं का प्रकार बताइए 1 c+o²=co² 2 zn+2AgNo³=zn(no³)²+2Ag |
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Answer» dgshhshshshshhhdhdhd |
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| 1170. |
How are arganic compounds are classified |
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Answer» Answer:Organic Compounds can be classified on TWO bases. ... It is called open chain compounds because they have a linear structure. The best EXAMPLES of these compounds are acyclic aliphatic compounds and alkanes. Open-chain compounds can be understood by straight-chain compounds and branched-chain compounds. Explanation: |
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| 1171. |
Calculate the nomber of moles in 3.6mg of nh3 (n=14) |
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Answer» Answer: I couldn't able to understand your QUESTION |
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| 1172. |
Density of mercury is 13.6g/cc calculate in kg/m^-3 |
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Answer» Answer: The density of MERCURY is 13.6 g/cm3 in CGS system. FIND its VALUE in SI UNITS. Density of mercury is 13.6? 10^3 kg/m^3. |
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| 1173. |
The shrinking of gels on standing for a long time is |
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Answer» Answer: The shrinking of gel is called synresis or weeping. On allowing a gel to stand for a long TIME, it shrinks and loses all its liqiud CONTENT. Hope it helps☺ Thank you Mark it BRAINLIEST |
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| 1174. |
(CH2H5) 3CH draw the structure |
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Answer» The STRUCTURE REPRESENTS 3-Ethylpentane. |
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| 1175. |
The metals in group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. Which of these elements will have the largest atomic size? |
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Answer» Answer: Barium will form ions most readily because Barium, whose chemical symbol is Ba, is one of the ALKALINE METALS and we know that the chemical REACTIVITY of metals increases as we move from top to BOTTOM in a group. |
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| 1176. |
D. Write 'True' or 'False for the following statementsStatementTrue False1. A common salt solution is a homogeneous mixture.2. A pure substance is homogeneous material which contains particles of one kind only.3. Sugar solution is a heterogeneous mixture,4. Alloy is a mixture of two or more gases.5. Iron sulphide is an element.E Tick (V) the most appropriate answer.1. The constituents of a mixture(ii) four compounds, which ca |
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Answer» Explanation: 1 True 2 True 3 FALSE 4 False 5 False |
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| 1177. |
Number of isomers of pt(nh3)2cl2 is a)3 b)4 c)2 d)5 |
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Answer» We have to find the no of isomers of Pt(NH₃)₂Cl₂. solution : Pt(NH₃)₂Cl₂ exists in square planner geometrical shape. there are two ammonia and two chlorine ATTACHING with platinum. so the general form of this compound is MA₂B₂. we know, this TYPE of structure can be shaped into two forms cis and trans. see figure to understand. Therefore no of isomers of Pt(NH₃)₂Cl₂ is two i.e., cis Pt(NH₃)₂Cl₂ and trans Pt(NH₃)₂Cl₂. also read similar questions : Which of the following can't show isomerism ? (1) [NI(NH3)2Cl2] (2) [Ni(en)3] (3) [Pt(NH3)2Cl2] (4) [NA(NH3)4(H20)2] iupac name of pt(nh3)2cl2(no2) |
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| 1178. |
(CH3CH2) 2C(CH3)CH2CH2CH3 iupac name and draw the chain |
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Answer» Answer: 3 - ethyl-3methylhexana |
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| 1179. |
Write the number ions in given masses of following ions of elements.(i). 1 g of H+ =……………….(ii). 12 g of C+4 =……………….(iii). 24 g of Mg+2 =………………(iv). 12 g of Cl- =……………….(v). 23 g of Na+ =……………… |
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Answer» halxndbs nsbdndns sjshx8ka sjxuamwkfod djdidowmd fisndnfos sicbbsnsifns fkdje |
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| 1180. |
Write the colour of copper sulphate solution obtained when iron nails are dipped in it. |
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Answer» GOOD MORNING merijaan how are you doing now the FIRST TIME of the first time of the first |
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| 1181. |
What is monosaccharide |
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Answer» Answer: Answer:Monosaccharides, also called simple SUGARS, are the simplest form of sugar and the most basic units of carbohydrates. The general FORMULA is C ₙH ₂ₙO ₙ, albeit not all molecules fitting this formula are carbohydrates. They are USUALLY colorless, water-soluble, and crystalline SOLIDS. |
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| 1182. |
किsi parmanu ke naabhik में कौन-koun से मूलकण PAYE Kate Hain |
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Answer» अपरमाणविक कण इलेक्ट्रॉन, प्रोटॉन और न्यूट्रॉन एक परमाणु के संघटक कण है; सभी तीन फर्मिऑन हैं। हालांकि, हाइड्रोजन-1 के परमाणुओं में कोई न्यूट्रॉन नहीं है। इलेक्ट्रॉन पर एक ऋणात्मक विद्युत आवेश होता है। इसका आकार बहुत छोटा होता है और द्रव्यमान 9.11 × 10−31 कि. |
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| 1184. |
Give two situations to show the presence of force between the particles of matter. |
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Answer» Answer: 1st A BUS Which is being PUSHED by PEOPLE here the FORCE is. being DONE by the people |
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| 1185. |
Which one is not a cation exchanger |
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Answer» Explanation: cation-EXCHANGE agent that can exchange its cation with the cation or cations of a solution passed through it and that consists of an INSOLUBLE saltlike or acidic substance:as. a : a natural or SYNTHETIC zeolite. ⋆ ˚｡⋆୨୧˚ ˚୨୧⋆｡˚ ⋆⋆ ˚｡⋆୨୧˚ ˚୨୧⋆｡˚ ⋆ |
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| 1186. |
What is present in the solution when 50 ml 0.1 M Hcl is mixed with 50 ml 0.1 M NaOH? |
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Answer» D 10 −7 M of H + |
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| 1187. |
.A mixture A with 4 gm of salt in water is less salty than a mixture B with 40 gm of salt in water. What does it indicate about the mixture? |
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| 1188. |
Calculate the molality of solution which contains 20g of potassium chloride |
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Answer» Molarity = Number of moles / Amount of solution ( In liters) NaOH molar mass = 23 + 16 + 1 = 40 g => Number of moles in 4 g = 4 g / 40 g = 0.1 mole Amount of water = 0.5 liters Molarity = 0.1 Mole / 0.5 Litres => Molarity = 0.2 M Explanation: |
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| 1189. |
Number of plates in column depends on...1)Particle size of stationary phase2)Column length3)Nature of stationary phase4)All of these |
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| 1190. |
calculate the molality of solution which contains 20g of potassium chloride, pls fast answer with steps |
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Answer» Answer: Taj I will do it for you ☺️ very excited and LOOKING will be a LITTLE LATE email but not the other |
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| 1191. |
Which of the following alkyl halide is hydrolysed by SN1 mechanism? (a) CH3Br (b) (CH3)3C-Br (c) CH3-CH2-Br (d) CH3-CH2-CH2-Br |
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Answer» (CH) 3 |
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| 1192. |
If 400 gram of calcium carbonate decomposes to form 224 gram of calcium oxide calculate the amount of carbon dioxide form name and same the law on which the calculations are based.(If you will give the right answer I will increase your 10 followers...) |
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Answer» Explanation:176 G of CO2 is formed and the acording to the BOILLING point of.the caco3 and MAKES ca0+co2
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| 1193. |
which contains more number of particles?, 1g Na , 1gCO2, 1g NH2, please answer fast with correct answer |
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| 1194. |
इलेक्ट्रॉनवर_____ प्रभाय असातो |
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Answer» इलेक्ट्रॉनवर_____ प्रभाय असातो |
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| 1195. |
describe anomalous behavior of oxygen with the other element of group 16 with reference to 1. magnetic property |
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Answer» Answer: Magnetic property : Molecular oxygen (O2) is PARAMAGNETIC while other members of group 16 are diamagnetic. b. Oxidation STATE : In most of COMPOUNDS, oxygen shows −2 oxidation state. ... It cannot exhibit HIGHER oxidation state due to absence of VACANT d-orbitals. |
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| 1196. |
Find the number of electrons in valance shell of the following atoms using in periodic table |
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Answer» For neutral ATOMS, the number of valence electrons is equal to the atom's MAIN group number. The main group number for an ELEMENT can be found from its column on the PERIODIC table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons. |
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| 1197. |
Telqlene is polumoz of terepitnatis acid and ethyleve glycol |
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Answer» Answer: POLYETHYLENE TEREPHTHALATE, waste, physical and chemical ... terephthalic acid and ethylene GLYCOL with wate r as a ... MONOMERS terephthalic acid and ethy LENE glycol. |
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| 1198. |
What type of chemical reaction taken place when electricity is passed throurgh water |
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Answer» Answer: DECOMPOSITION reaction Explanation: WHENEVER in a reaction when electricity is passed through water then there is ELECTROLYSIS of water in that reaction and we CALLED electrolysis of water a decomposition reaction. |
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| 1199. |
A cation that is yellowish brown in colour |
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| 1200. |
Which of the following value of ph represents a strong acid |
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Answer» Answer: Explanation: as we know that PH Value 2 of a SUBSTANCE REPRESENT it as strong ACID. |
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