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InterviewSolution
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.
| 48101. |
Draw the different parts of metallurgical microscope and label it |
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Answer» The Metallurgical MICROSCOPE consists essentially of an optical system and an ILLUMINATION system. The optical system, includes the eyepiece lens, relay system and the OBJECTIVE lens. Typical APPLICATIONS are grain sizing, inclusion counts, layer thickness assessment and PHASE determination |
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| 48102. |
Sanghanit prawastha niyam kya kar ag bp ka tantra aarekh |
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Answer» What is it can't UNDERSTAND |
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| 48103. |
The atomic number of oxygen is 8. The number of electrons in the O2- ion is ___________. PLEASE DONT SPAM GIVE CORRECT ANSWER |
| Answer» ANS is 8 PROTONS ,10 ELECTRONS | |
| 48104. |
For a first order reaction, the time required for 99.9% completion is 100 min. What will be the rate constant for the reaction?1.25 x 10-4 5-11.15 x 10-35-12.2 x 10-25-14.5 x 10-2 s-1 |
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Answer» For FIRST ORDER REACTION,t=k2.303loga−xaGiven that:- x=99.9a for t99.9%x=0.5a for T50%∴t50%t99.9%=k2.303loga−0.5aak2.303loga−0.999aa⇒t50%t99.9%=log0.51log0.0011⇒t50%t99.9% |
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| 48105. |
How will you define sound? |
| Answer» ICS, sound is a vibration that propagates as an acoustic wave, through a TRANSMISSION medium such as a gas, LIQUID or solid. In HUMAN physiology and psychology, sound is the reception of such WAVES and their perception by the brain. | |
| 48106. |
when we mik iron filling with sulphur powder and heat it. we woul not be able to searate iron fillings with magmet WHY |
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Answer» All it TAKES is a magnet to separate the iron from the SULFUR. On the other hand, if you heat the iron and sulfur, you form iron sulfide, which is a compound; the iron and sulfur can no longer be separate from one ANOTHER Hope my ANSWER have helped you!! |
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| 48107. |
Match the following orbital given in list I with the description given in list II. Please give genuine answers |
| Answer» UNDERSTAND your QUESTION | |
| 48108. |
The boiling point of ethane is -88 degree Celsius. Report this value in its SI unit. A 285 K B 185 F C 185 K D -185 K |
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| 48109. |
some times 1 coulomb is equal to 6.24 quintillion electron per cross sectional area in a unit time ! what is meant by e to m ratio ? |
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Answer» The coulomb (symbolized C) is the standard unit of electric charge in the International System of Units (SI). It is a dimensionless quantity, sharing this aspect with the mole. A quantity of 1 C is EQUAL to approximately 6.24 x 1018, or 6.24 quintillion.In terms of SI base units, the coulomb is the equivalent of one ampere-second. Conversely, an electric current of A represents 1 C of unit electric charge CARRIERS flowing past a specific point in 1 s. The unit electric charge is the AMOUNT of charge contained in a single electron. Thus, 6.24 x 1018 electrons have 1 C of charge. This is also true of 6.24 x 1018 positrons or 6.24 x 1018 protons, although these two types of particle carry charge of opposite polarity to that of the electron.The force with which two electrically charged bodies attract or repel one another DEPENDS on the PRODUCT of the charges (in coulombs) in both objects, and also on the distance between the objects. If the polarities are the same (negative/negative or positive/positive), the so-called coulomb force is repulsive; if the polarities are opposite (negative/positive or positive/negative), the force is attractive. For any two charged bodies, the coulomb force decreases in proportion to the square of the distance between their charge centers. |
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| 48110. |
P4 Is the Exmaple of a) Atomb) Molecule c) Radical d) None |
| Answer» P 4 +3NaOH+3H 2 O→PH 3 +3NaH 2 PO 2 In reactant P is present in (0) oxidation state and in PH 3 , it is present in (−3) oxidation state and in NaH 2 PO 2 it is present in (+1) oxidation state. P undergoes both oxidation and reduction. So this is an EXAMPLE of disproportionation reaction. Explanation:atom | |
| 48111. |
What are strong and weak bases? |
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Answer» Strong base: A base which completely IONISES in WATER and produces a large amount of hydroxide ions. Weak base: A base which is PARTIALLY ionised in water and produces a small amount of hydroxide ions.Explanation:L HOPE this helps u |
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| 48112. |
Explain finkel Stein reaction with an example |
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Answer» Finkelstein reaction: An SN2 reaction in which one halogen ATOM (the LEAVING group) is replaced by ANOTHER halogen atom (the NUCLEOPHILE). In this example of the Finkelstein reaction, 1-chloro-2-phenylethane (a primary alkyl HALIDE) is treated with sodium iodide (the nucleophile) to produce 1-iodo-2-phenylethane. |
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| 48113. |
Do basic solutions also have H+ (aq) ions? If yes, then why are these basic? |
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Answer» Bases are SUBSTANCES to release hydroxide ions (OH– ions) when dissolved in water. They are found to have a soapy texture when touched. In their aqueous solutions, bases act as good conductors of ELECTRICITY, the PH VALUES corresponding to bases are always greater than 7. Bases are bitter-tasting substances which have the ability to turn red litmus paper blue.H + ions can be found in all basic solutions. They are basic SINCE hydrogen ions have a much lower concentration than hydroxide ions.Yes basic solutions also have H+(aq) ions. They are basic because the concentration of hydroxide (OH−) is more than the H+(aq) ions. |
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| 48114. |
মৌল বা মৌলবিদ্যা কী ? |
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Answer» মৌলিক পদার্থের ক্ষুদ্রতম অনু বা কণা । যে সব পদার্থকে ক্ষুদ্র ক্ষুদ্র অংশে বিভক্ত করলে ওই পদার্থ ছাড়া অন্য কোন পদার্থ পাওয়া যায়না। |
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| 48115. |
Answer in detail !!!!!!¡!!!!!!!!¡!!!!!!¡ |
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Answer» This is rhe ANSWER by sarthak .COM only SOLUTIONS are CHANGED METHODS are same |
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| 48116. |
Calculate mass of 1120 litre of N2 at stp |
| Answer» | |
| 48117. |
Balance the equation |
| Answer» 1. 2KClO3 ---> 2KCl + 3O22. Fe + S ---> FeS (ALREADY balanced)3. H2 + Cl2 ---> 2HCl4. 2H20 ---> 2H2 + 2O5. 2Na + 2H2O ---> 2NaOH + H2 7. N2 + 3H2 ---> 2NH38. 2SO2 + O2 ---> 2SO310. 2H2S + SO2 ---> 3S + 2H2O | |
| 48118. |
This is how i am spending my day : Neend : 7 GhanteIn$tagram : 6 GhanteYo.uTube : 3 GhanteTaane : 2 GhantePadhai : GHANTA!!! |
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Answer» O. K. EXPLANATION:O. k. |
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| 48119. |
What is meant by homologous series? |
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Answer» A HOMOLOGOUS series is a family of HYDROCARBONS with similar chemical properties who share the same general formula. We will look at three hydrocarbon series: ALKANES, alkenes and the cycloalkanes. Hydrocarbons are compounds that contain only hydrogen and CARBON. |
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| 48120. |
What is the iron ore? |
| Answer» IRON ore are the MINERALS from which iron is extracted.Explanation:Hope it WOULD be HELPFUL to you | |
| 48121. |
An element reacts with oxygen to produce a melting point compound. This compound is easily soluble in that element. a. Calciumb. Carbonc. Silicond. Iron |
| Answer» | |
| 48122. |
Predict and explain the shape of water molecule using VSEPR theory |
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Answer» Water has 4 REGIONS of electron DENSITY around the central oxygen atom (2 BONDS and 2 LONE pairs). These are arranged in a tetrahedral shape. The resulting molecular shape is bent with an H-O-H angle of 104.5°. |
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| 48123. |
will protons have velocity?? they are located at the centre of nucleus like a stationary particle so they have zero velocity is this correct or wrong pls support your answer on basis of Heisenberg uncertainty principle and de broglie hypothesis pls guys if any one have answer pls tell |
| Answer» TION:yes.its VELOCITY's 400 to 500 km/sec | |
| 48124. |
What is mean by of chemical reaction? |
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Answer» tion:A chemical reaction is a process in which one or more substances, ALSO called REACTANTS, are converted to one or more different substances, known as products. ... A chemical reaction rearranges the constituent atoms of the reactants to CREATE different substances as products. |
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| 48125. |
@My bagthan worldhr.u I m also in 9th I m Alex |
| Answer» G galat habhaiya :)MyBangtanWorld hota H xDnice to MEET u ALEX I'm shivaniI'm fine u? | |
| 48126. |
What is the fullform h2so4 |
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Answer» Sulfuric acid (AMERICAN spelling) or sulphuric acid (Commonwealth spelling), ALSO known as oil of VITRIOL, is a mineral acid COMPOSED of the elements SULFUR, oxygen and hydrogen, with the molecular formula H2SO4. |
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| 48127. |
Pls help in chemistry during polarization ,how does size of anion affect polarizing ability and how does size of cation affect polarizing power? |
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| 48128. |
10. 40 mL of 0.5 N HCI, 60 mL of 0.5 N H SO4 and 100 mL of 0.2 N HNO2 are mixed together. What is the normality of the resulting solution? |
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Answer» Explanation:20 ml of 0.2N HCl and 40 ml of 0.4N HNO3 are MIXED and the SOLUTION is DILUTED up to 100ml, what is the NORMALITY of the resulting |
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| 48129. |
12.5 g of copper are reacted with an excess of chlorine gas, and 25.4 g of copper(II) chloride are obtained. Calculate the theoretical yield and the percent yield.Cu + Cl2 CuCl2 |
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| 48130. |
An atom of an elements has 13 electrons and mass number 27.the nucleus of this atom contains __ neutrons |
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Answer» tion:13 electrons - ATOMIC number 13 - Aluminiummass number -27 Number of neutrons = MASS number (A) - Atomic number (Z) = (A-Z) = 27-13 = 14 The nucleus of this atom contains 14 neutronscheck!.yes it's correctplease MARK me as BRAINLIEST |
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| 48131. |
What is the product formed when pentyne reacts with disiamylborane? Choose correct answer (A) Pentanol (B) Pentanone (C) Pentanal (D) Pentan-2-ol |
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Answer» C) 1-PENTANOL is the product formed when PENTYNE REACTS with DISIAMYLBORANE? |
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| 48132. |
18. 5 ml of a mixture of methane and ethylene need 13.2 ml of oxyges for complete combustion. Find the volume of each gas present . |
| Answer» HI have a NICE DAY AHEAD | |
| 48133. |
Write about the hydrolysis of salts.it's urgentanswer it fast....!! |
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Answer» A salt is an ionic compound that is formed when an acid and a BASE neutralize each other. Salt hydrolysis is a reaction in which one of the ions from a salt reacts with water, forming either an acidic or basic solution.please HELP me for making the 2 k (2000) thanks and regards for the 300 follower ❤️❤️❤️ please GUYS ❤️❤️❤️❤️❤️ |
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| 48134. |
a solution of glucose in water is labeled as 10% w/w . What would be the molatity ? If density of solution is 1.2g mL ^-1 then also find out molarity . |
| Answer» PLZ ASK EASY ONE this is too HARD | |
| 48135. |
Coordination number of ptcl[(no2)(nh3)4]2+ |
| Answer» 2/(6/69 is the ANSWER BRO HOPE you LIKE it | |
| 48136. |
Mark the incorrect statement about ionization enery |
| Answer» THUS, this statement GIVEN is INCORRECT. So, the correct answer is “Option D”. Note: Ionization energy of an element usually depends on the force of attraction between the negatively CHARGED ELECTRONS and the positively charged nuclei | |
| 48137. |
Complex with coordination number six has _____ structure |
| Answer» OCTAHEDRAL Explanation:The COMPLEX with COORDINATION number 6 has octahedral structure. | |
| 48138. |
Just because some people are fueled by drama doesn't mean you have to attend the performance. Just because some people are fueled by drama doesn't mean you have to attend the performance. |
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| 48140. |
4. Manure is added, when the soil is too ____________ . (a) acidic (b) basic (c) neutral he odd ones. |
| Answer» ACIDIC MARK me BRAINLIST | |
| 48141. |
Which of the following gas is a reddish brown gas when reduces to HNO3 |
| Answer» YES I will be there at me and I will be there at | |
| 48142. |
Why is metal considered as electroprotective element |
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Answer» Magnesium and zinc are often USED as SACRIFICIAL METALS. They are more reactive than iron and LOSE their ELECTRONS in preference to ironExplanation:Hope it helps |
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| 48143. |
The formation of curd is a _ Change 1. desirable change 2. reversible change 3. undesirable change 4. None of these |
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Answer» the ANSWER is OPTION 4 none of these the FORMATION of CURD is irreversible change |
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| 48144. |
Give Reason - It is easier to walk in a plain road than to walk in sand. |
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Answer» The larger AREA of flat shoe EXERTS less pressure as compared to the PENCIL heeled shoe. Due to GREATER pressure, the sand under pencil-heeled shoe SINKS in greater depth and therefore, it is difficult to walk with a pencil- heeled shoe on the sand. On the other hand, flat shoes exert less pressure and do not sink down in the sand.Explanation:Hope it helps you ☺️☺️✌️✌️ |
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| 48145. |
Which of the following are combustion reactions? NaNO3 (aq) arrow Na+(aq) + NO3-(aq) C2H6 (g) + O2 (g) arrow CO2 (g) + H2O (l) Mg(s) + HCl (aq) arrow H2 (g) + MgCl2 (aq) HCl (aq) + NaOH (aq) arrow HOH (l) + NaCl (s) |
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Answer» 2nd reaction C2H6 (G) + O2 (g) arrow CO2 (g) + H2O (l) EXPLANATION:As the products are co2 and h20 which are PRODUCT of combustion reaction this reaction is combustion reaction |
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| 48146. |
Find odd one out coal ,glass, wood ,paper. |
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| 48147. |
23. रॉक साल्ट में Na+ तथा Cl- की समन्वय संख्यायें क्या हैं? |
| Answer» R to all but I don'.t. have MUCH followers. you can check my profil.e also..I GIVE FAIR answers | |
| 48148. |
5. What do the following symbols stand for? (a) H (b) H (c) 2H (d) 212 |
| Answer» H2 means TWO hydrogen atoms. O2 means two oxygen atoms. ..2H2 means two MOLECULES of hydrogen and four hydrogen atoms | |
| 48149. |
Which fibre form beads on burning and does not give any flame |
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| 48150. |
Can someone tell which book it is? Its a teference book of class 11 chemistryIts ugent |
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Answer» don't knowExplanation: |
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