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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. |
Explain different conformation of Ethane . |
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Answer» Answer: In the ECLIPSED conformation, the C-H bonds on the FRONT and back CARBONS are aligned with each other with dihedral angles of 0 degrees. ... In the staggered conformation, the C-H bonds on the rear CARBON LIE between those on the front carbon with dihedral angles of 60 degrees. |
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| 2. |
(c6h5)2(No2)2 is named as |
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Answer» Explanation: The MOLECULAR formula C6H5NO2 (molar MASS: 123.11 g/mol) may REFER to: Nitrobenzene; Pyridinecarboxylic acid. Isonicotinic acid · NIACIN · Picolinic acid. |
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| 3. |
Why electronegativity increase from top to bottom. |
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Answer» Answer: hello Explanation: electroneativity actually decrease from TOP to bottom and electropositivity INCREASES this is because the SIZE of an atom of the element increases and hence the +vecharge in the nuclear FAILS to hold electrons on the outer orbit with the help of electrostatic force hope it HELPS u |
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| 4. |
C6h5No2cl compound is named as |
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Answer» Molar mass calculator ALSO displays common compound name, Hill formula, elemental COMPOSITION, mass PERCENT composition, atomic percent . |
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| 5. |
How many five membered rings are present in the structure of Fredercamycin A? |
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Answer» FIVE MEMBERED RING are CALLED furanoses Explanation: |
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| 6. |
➠ What is Acceleration ?? |
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Answer» Answer: ok Explanation: Acceleration is the rate of change of VELOCITY. USUALLY, acceleration means the speed is changing, but not always. When an object moves in a CIRCULAR PATH at a constant speed, it is still accelerating, because the direction of its velocity is changing. |
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| 7. |
the phenomenon in which different compounds with same molecular formula have different functional group is known as |
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Answer» ISOMERISM is the phenomenon of exhibiting TWO or more COMPOUNDS with same molecular formula but different PHYSICAL and CHEMICAL properties. Isomers are the compounds showing different physical and chemical properties but same molecular formula. |
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| 8. |
Soap and detergents forms which type of colloids? |
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Answer» SOAPS and DETERGENT are macro-molecular colloids. Explanation: |
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| 9. |
& no. 1 - Write luPAC Nomenclature ofthe following compounds.(1) CH₃ -C=C-CH-CH2-CH=CH₂1CH=CH2 |
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Answer» Write IUPAC names of the following COMPOUNDS. (i) CH 3
−CH
− CH 3
∣ C ∣
CH 3
−CH 2
(ii) CH 2
=CHCL |
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| 10. |
Q: Shine-Dalgarno sequence is sequenc |
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Answer» The Shine–Dalgarno (SD) sequence is a ribosomal binding site in bacterial and archaeal messenger RNA, generally located AROUND 8 bases upstream of the start codon AUG.[1] The RNA sequence helps recruit the ribosome to the messenger RNA (MRNA) to initiate protein synthesis by aligning the ribosome with the start codon. Once recruited, tRNA may add amino ACIDS in sequence as dictated by the codons, moving downstream from the translational start site. The Shine–Dalgarno sequence is common in bacteria, but rarer in archaea.
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| 11. |
1. A group of student s wanted to prepare a sample of crystal from this following reaction: sodium + water → A + hydrogen; A + hydrochloric acid → B + water(a) What is the chemical name of A? (b) What is the chemical name of B? (c) Salt is divided into acidic salt, basic salt and neutral salt. What kind of salt is produced by the second reaction?2. A chemical element with atomic number 20 and mass number 40.078 amu. It is a reactive metal which is located in alkaline earth metal group.(a) What is the chemical name of the element? (b) Write a word equation for the reaction of this reactive metal with water. (c) Write a word equation for the reaction of this reactive metal in carbonates with hydroiodic acid. 3. There're 3 unknown compounds (A, B and C) give lilac, blue-green and crimson red colour respectively.(a) What metal is in each compounds (A, B and C)? (b) Which metal (in part a) does not react with water? Explain your answer. 4. A salt is obtained from reaction between metal and acid solution. The metal that used in this reaction is silver and the acid solution is carbonic acid. (a) What is the chemical name of salt above? (b) Explain the separation method that used to get dry powder of the salt above. (c) Write a word equation for this reaction. pls help I'm not good at chemistry |
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| 12. |
Electric potential has no importance but electric potential difference has importance. why? |
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Answer» Answer: Electric POTENTIAL ENERGY results from forces between charges; potential difference is the energy needed to move a CHARGE from point A to B. HOPE IT HELPS U ! |
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| 13. |
Which is the strong reducing agent |
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Answer» lithium Due to the smallest standard REDUCTION potential, lithium is the strongest reduction agent. It decreases ANOTHER SUBSTANCE when something is oxidized, becoming a reduction agent. Lithium is, therefore, the most powerful reducing agent. |
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| 14. |
ph of gastric solution is1.2 and lemon juice is 2.2 and water is 7.4 among these qhich has more or less equal amounts of h+ or oh- ions are. a) gastric juice. b) lemon juice. c) water. d) all of the above |
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Answer» C. WATER IS THE ANSWER MATE HOPE IT HELPSPLEASE MARK BRAINLIEST |
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| 15. |
Alkenes are also known as --------ParaffinsolefinsBoth Paraffins and olefinsNone of these |
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Answer» ANSWER- A. PARAFFINS |
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| 16. |
3. Name two soft metals? |
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| 17. |
Which of the following inorganic drugsare practically insoluble in water?O Na2S04OBaS04ONa2HPO4O Mgo |
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Answer» ANSWER:mgo Explanation: |
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| 18. |
Q: Cellulose fibrils become rigid by |
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Answer» In a cell WALL, the fibrils are cellulose microfibrils, and the matrix is composed of other POLYSACCHARIDES and proteins. ... The cell wall also binds the plant cell to its neighbors. This binding CREATES the tough, rigid skeleton of the plant body. Cell WALLS are the reason why plants are erect and rigid. |
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| 19. |
Optical activity of spiranes? |
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Answer» So the optical ACTIVITY of the spirans are due to the asymmetry of the molecule as a WHOLE, thereby GIVING rise to optically active FORMS. Hence, it is optically active. Another example of optically active spiran is 3,8 dimethyl-1,6-dioxaspiro [4.4] nonane-2,7 dione. |
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| 20. |
Make a list of things make of polyester? |
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Answer» Answer: many clothing items MADE from JERSEY (TEE shirt material) will be a blend of polyester and cotton. Anything weatherproof (raincoats, winter coats, hiking PANTS, etc. etc.) is almost certainly polyester. Most swimwear (mens and womens) is partially or completely made of polyester. Explanation: hope it healps flw me :) |
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| 21. |
Which one of the following is chemical property |
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Answer» FLAMMABILITY,toxicity,acidity,reactivity (many TYPES) |
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| 22. |
GCUF | Online Exam PortalD.GCUF17:0CHM-30Q: The greater stability of isobutylene than 1-butene is due to |
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Answer» More highly substituted double BONDS are generally more stable than less substituted double bonds. ... Consequently 2-butene (where we can DRAW 6 hyperconjugated resonance STRUCTURES) is more stable than 1-butene (where we can only draw 2 hyperconjugated resonance structures).15-Mar-2015 Explanation: please mark as Branilst answer |
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| 23. |
Anyone have trigonometry formula list if any one have please share it |
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Answer» sin θ = Opposite Side/Hypotenuse. cos θ = Adjacent Side/Hypotenuse. tan θ = Opposite Side/Adjacent Side. sec θ = Hypotenuse/Adjacent Side. cosec θ = Hypotenuse/Opposite Side. cot θ = Adjacent Side/Opposite Side. 1.sin2 A + cos2 A = 1 2. 1+tan2 A = SEC2 A 3. 1+cot2 A = csc2 A |
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| 24. |
_______This is not a evaluation parameter for powderContent uniformityParticle Size distributionSedimentation rateMoisture content |
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Answer» the CORRECT answer is SEDIMENTATION rate Explanation: PLZ mark as brainlist if it is helpful |
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| 25. |
________It is not evaluation parameter for suspensionSedimentation rateZeta potentialCentrifugation testElectrical conductivity test |
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Answer» the CORRECT answer is SEDIMENTATION RATE |
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| 26. |
As the hybridization changes from sp3 to sp2 to sp then bond angle in molecule |
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Answer» increases As bond ANGLE in sp3 hybridization is 109.28', in sp2 hybridization is 120 and in sp3 hybridization it is 180. This is DUE to bent RULE. According to which as s character increases, bong angle increases. |
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| 27. |
Which one have higher boiling point H2o or C6H6? |
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Answer» kghibhvgj COLLATERALS |
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| 28. |
Which of the following comes under topical agentsa. Antacidsb. Laxatives and Purgativesc. Expectorants and Emeticsd. Protective and adsorbents |
Answer» OPTION (d) Protective and absorbents is the CORRECT answer.Explanation: Topical agents that act by physical action would include protectives, ADSORBENTS, emollients, and cleansing agents, whereas the astringents, IRRITANTS, rubefacients, and keratolytic agents are the ones which act by chemical means. Types of tropical agent;anorectal preparations. antiseptic and germicides. dermatological agents. miscellaneous topical agents. ... mouth and throat products. nasal preparations. nasal antihistamines and decongestants. ... ophthalmic preparations. anti-angiogenic ophthalmic agents. ... otic preparations. ... sterile irrigating solutions. |
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| 29. |
Which is the type ofnon-metal is used inmakingcrackers? Give me at first. I will mark u as brainliest. |
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Answer» Chemistry Non-metals such as Sulphur and PHOSPHOROUS are USED to manufacture CRACKERS. |
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| 30. |
What are three differences between limiting reactant and excess reactant |
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Answer» Answer: 1 Answer. A limiting reactant is one in which it produces the LEAST amount of PRODUCT. An EXCESS reactant is one in which it produces more of a product than the limiting reactant |
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| 31. |
इंटरमॉलिक्युलर फोर्सज इन लिक्विड |
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Answer» tq and FALLOW me |
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| 32. |
Ferrous gluconate occurs asa. Pink crystalsb. Bluish Green crystalsc. Yellowish or greenish yellow powderd. White amorphous Powder |
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| 33. |
Q: 1, 4 benzenediol is also known as |
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Answer» Answer: 1, 4 benzenediol is ALSO KNOWN as HYDROQUINONE |
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| 34. |
Alum is used asa. Antisepticb. All of thesec. Astringentd. Haemostatic agent |
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Answer» Here's Your Answer B. All of these. |
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| 35. |
Chlorination of alkane involves : carbon free radical , carbocation , carbanion , carbene |
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| 36. |
पृथक्करण का नियम किसने दिया था ?(A) एसीरीयन्स(B) डार्विन(C) मेंडल(D) बैबिलोनिय30 ❤= 40 ❤ |
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Answer» पृथक्करण का नियम मेण्डल ने दिया था. इसे मेंडल का द्वितीय सिद्धांत भी कहते हैं । |
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| 37. |
Sodium hydroxide +hydrochloric acid -sodium chloride +water |
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| 38. |
barium chloride solution reacts with sodium sulphate solution we get precipitation of barium sulphate and sodium chloride solution |
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Answer» Answer: the above mentioned reaction is a double DISPLACEMENT reaction Explanation: BaCl2 + Na2SO4 → BaSO4 + 2 NaCl the precipitate formed will be barium sulphate which is WHITE in COLOUR |
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| 39. |
Sodium +water -sodium hydroxide +hydrogen |
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Answer» Answer: Explanation: NA - sodium H 2O - WATER OH - HYDROXIDE H - hydrogen |
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| 40. |
List some metals along with their uses non-metals. Write 7 points? |
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Answer» Answer: Oxygen is used for breathing. Chlorine is used for purifying water. Phosphorous is used in crackers. Non - metals LIKE NITROGEN is used in fertilizers. Graphite is used as a GOOD conductor of electricity. Pottassium is used in fertilizers. Nitrogen is used by plants. hope it helps u !! MARK me as brainliest.. |
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| 41. |
If x y z are the 3 consecutive multiples ofa, what is the value of uy az? |
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Answer» Here are some examples of consecutive multiples of 3: 6, 9, 12 24, 27, 30 51, 54, 57 Notice that each value is 3 greater than the value before it So, if x, y, and z are three consecutive multiples of 3, then we can write: x = x y = x + 3 z = x + 6 Quantity A: The remainder when the sum of x + 1, y — 2, and z + 3 is divided by 9 We want the remainder when [(x + 1) + (y - 2) + (z + 3)] is divided by 9 Replace y and z with their equivalent VALUES above to get: [(x + 1) + (x + 3 - 2) + (x + 6 + 3)] Simplify to get: 3x + 11 IMPORTANT: Since x is a multiple of 3, we know that x = 3k, for some INTEGER k So, we can take our sum of 3x + 11 and rewrite it as: 3(3k) + 11 Simplify to get: 9k + 11 We can rewrite this as: 9k + 9 + 2 And then factor to get: 9(k + 1) + 2 When we write it this way, we can see that are sum is TWO GREATER then some multiple of 9. So when we divide the sum by 9, the remainder must be 2 Quantity B: 2 So, the two quantities are equal. Answer: C |
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| 42. |
Principle quantom number describes |
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Answer» Answer: The principal quantum number, n, describes the energy of an electron and the most probable DISTANCE of the electron from the nucleus. In other WORDS, it REFERS to the SIZE of the orbital and the energy level an electron is placed in hope it helps |
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| 43. |
Jaldi wake up hone ki trick batayo without alarm |
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Answer» Answer: RAAT ko jaldi soo simple yrr if u have TENSION u will WAKE up early |
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| 44. |
Q: The response of radiation in therapeutics is not depends onOB Total dosedose rateD Time of exposure☺ radiation qualityS Refresh |
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| 45. |
the rate of which the reaction proceed is directly proportional to the product of the active mass of a) products b)reactant c)catalyst d)none of these |
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Answer» HOPE you MARK me as the BRAINLIEST |
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| 46. |
Ethanol to ether mechanism |
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Answer» At 110º to 130 ºC an SN2 REACTION of the ALCOHOL conjugate acid leads to an ether product. At higher temperatures (over 150 ºC) an E2 elimination takes place. ... If ethanol is dehydrated to ethene in presence of sulfuric acid at 433 K, but as 410 K, ethoxyethane is the main product. |
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| 47. |
12. जलफश13. 109होता14. किसपड़त15. सामाहै। ब16. किसी17. क्या18. गैस19. अमोनि20. पदार्थ2. क्या वद्रव को2. उस गैसमें की |
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Answer» I don't know what's are you feeling Explanation: |
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| 48. |
Name the following compounds according to IUPAC |
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Answer» Explanation:
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| 49. |
298 કેલ્વિન તાપમાને પ્રક્રિયા 2x(g) + y(g) →2z(g)માટે AU = -10.5 કિલો જૂલ અને ∆S = -44.2 જૂલ/કૅલ્વિન છે. પ્રક્રિયામાટે ∆fG⁰ શોધો. પ્રક્રિયા આપમેળે થશે કે નહિ |
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Answer» ygyyyhkohb jjvbhhhhjnnbbbbb |
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| 50. |
Balance the below equation:K2Cr2O7 + HCl --> KCl + CrCl3 + H2O + Cl2 |
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Answer» Explanation: |
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