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. |
Butylated Hydroxy Toluene (BHT) as a food additive acts as (a) antioxidant (b) flavouring agent (c) colouring agent (d) emulsifier |
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| 2. |
Bactericidal antibiotic among the following is (a) ofloxacin (b) erythromycin (c) chloramphenicol (d) tetracycline |
| Answer» CIDAL ANTIBIOTIC AMONG the FOLLOWING is (d) TETRACYCLINE | |
| 3. |
The artificial sweetener which contains chlorine that has the appearance and taste as that of sugar and is stable and cooking temperature: (a) Aspartame (b) Saccharin (c) Sucralose (d) Alitame |
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Answer» The artificial sweetener which contains chlorine that has the appearance and taste as that of SUGAR and is stable and cooking TEMPERATURE:EXPLANATION:C) SUCRALOSE |
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| 4. |
Narcotic analgesic is (a) aspirin (b) paracetamol (c) codeine (d) cimetidine |
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Answer» Paracetamol is a Narcotic analgesicExplanation:It is a PAIN management drug for temporary relief as the NAME Narcotic analgesic suggests..HOPE it HELPS..... |
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| 5. |
when lead nitrate decomposes the brown colour product obtained is?opposition,leadoxide ,nitrogen dioxide,nitricoxide,oxygen |
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Answer» n lead nitrate is is EXPOSED to the sunlight it PRODUCES Nitrogen dioxide and lead oxide. the fumes of NO2 is in brown colour hence brown coloured product is obtained. if u UNDERSTOOD the answer...... FOLLOW me♡♡♥ |
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| 6. |
2090 What will happen to the melting point temprature of iceif some common salt is added to it? Justify youranswer. |
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Answer» lt is added to ice , the MELTING point of ice decreases . Reason : This is because of addition of non volatile solute salt which causes DEPRESSION in the freezing point of WATER. Due to this water FREEZES at a lower temperature and thus ice starts melting at a faster rate.pls mark me as brainleist |
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| 8. |
Which of the following contains the greatest number of atoms? (1) 1g of butane(2) 1g of N2(3) 1g of Ag(4) 1g of water |
| Answer» 4) 1 g of waterExplanation:COZ, masses are 58,28,108 and 18The least is 18Therefore,Atoms = Given MASS/molecular mass * 6.022 *10^231/18 * NA is the highest no. of atoms...... | |
| 9. |
Mass in grams of 1 Lead atom |
| Answer» 202 AMU is the MASS of lead atom PLEASE mark it as BRAINLIEST and also CLICK on a small heart and follow me | |
| 10. |
Please I need the answers of section B |
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| 11. |
Calculate the speed of a wave having wavelength of 200 nm and frequency of 100 Hz |
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Answer» 2×10^-5Explanation:v=f×wavelengthv=20000×10^-9v=2×10^-5I HOPE this HELPS ( ╹▽╹ ) |
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| 12. |
For the reaction C2H4 + 3O2 gives 2CO2 + H2O(l) ∆H=-1415kJ then ∆H at 27°C |
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Answer» : The enthalpy change is -1415 kJExplanation :The GIVEN balanced CHEMICAL reaction is,FORMULA used :where, = change in enthalpy = ? = change in internal energy = = change in MOLES = [(2+2)-(3+1)] = 0 (from reaction)R = gas constant = 8.314 J/mol.KT = temperature = Now put all the given values in the above formula, we GET:Therefore, the enthalpy change is -1415 kJmark me brainlest ☺️ plzzzzzzz |
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| 13. |
Using the knowledge of acid and bases write a secret message with the help of baking soda and beetroot explain how it works |
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Answer» The secret MESSAGE is written USING baking soda solution which is a weak base. Explanation:When beetroot juice INDICATOR is spread on the secret message , it turns into PALE yellow. This is because NaHCO₃ is BASIC and beetroot juice indicator turns pale yellow in reacting with bases. |
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| 14. |
Which one of this is not a periodic change Sunrise sunset Appearance of rainbow Full moon light Seasons |
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Answer» appearance of a RAINBOW is not a periodic change. The OTHERS will occur after fixed TIME no matter what. |
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| 15. |
Which of the following cationic detergent? (a) Sodium lauryl sulphate. (b) Cetyl trimethyl ammonium bromide. (c) Sodium dodecyl benzene sulphonate. (d) Glyceryl oleate. |
| Answer» TION:If u PLAY pubg PLS send me the ID | |
| 16. |
The drug Tagamet is (a) analgesics (b) antidepressant (c) anaesthetic (d) antacid |
| Answer» DPLEASE MARK IT AS BRAINLIEST | |
| 17. |
Drugs that bind to receptor site and inhibit its natural function are called (a) antagonists (b) agonists (c) enzymes (d) molecular targets |
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Answer» (a) ANTAGONIST is the CORRECT OPTION. |
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| 18. |
Ss 12 Chemistry MCQ Pdf Question 7. Which of the following is used as antacid? (a) Iproniazid (b) Salvarsan (c) Zantac (d) Chloramphenicol |
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Answer» ZANTAC OPTION C IS CORRECTEXPLANATION:Ranitidine is used to treat ulcers of the stomach and intestines and prevent them from coming back after they have healed. This medication is also used to treat certain stomach and throat (esophagus) problems (such as erosive esophagitis, gastroesophageal reflux disease-GERD, Zollinger-Ellison SYNDROME). It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as COUGH that doesn't go away, stomach pain, heartburn, and difficulty swallowing. Ranitidine belongs to a class of drugs known as H2 blockers.HOPE IT HELPS YOU..........PLEASE MARK THE BRAINLIEST.........THANK U |
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| 19. |
Mixture of chloroxylenol and terpineol acts as (a) antiseptic (b) antipyretic (c) antibiotic (d) analgesics |
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Answer» lgesicsthanks MARK as BRAINLIEST |
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| 20. |
.Which of the following is analgesic? (a) Streptomycin (b) Chloromycetin (c) Novalgin (d) Penicillin |
| Answer» NOVALGIN is an ANALGESIC......HOPE it HELPS.. | |
| 21. |
Mistry MCQS for Class 12 with Answers Pdf Question 4. Bithional added to soap acts as (a) buffering agent (b) antiseptic (c) softener (d) drying |
| Answer» TION:SOFTENER PLS MARK as BRAINLIEST | |
| 22. |
Artificial sweetener which is stable only under cold conditions only is (a) saccharine (b) sucralose (c) aspartame (d) alitame |
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| 23. |
Mistry MCQS for Class 12 Question 1. Which of the following is used as tranquilizer? (a) Naproxene (b) Tetracycline (c) Chlorpheniramine (d) Equanil |
| Answer» TION:equanilpls MARK as BRAINLIEST | |
| 24. |
Which one of the following is antihistamine? (a) Chloramphenicol (b) Diphenyl hydramine (c) Norethindrone (d) Omeprazole |
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Answer» (B) DIPHENYL HYDRAMINE is the correct one. MARK IT AS BRANLIEST... |
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| 25. |
Can enzyme be called a polymer? |
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Answer» No, you cannot call enzyme as polymer. Enzymes are composed primarily of proteins, which are polymers of amino acids. They are SPECIAL proteins that SPEED up chemical REACTIONS by lowering the activation energy needed to start the chemical REACTION. |
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| 26. |
Is there any difference between molar mass and molecular mass? |
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Answer» yes there is difference between molar MASS and MOLECULAR mass as molecule are different and MOLE is different Explanation:please mark as BRAINLIST |
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| 27. |
Evaporation is a ____ conversion of a liquid into a gaseous state |
| Answer» TION is a process of COVERSION of a LIQUID into a gaseous STATE | |
| 28. |
in the following reaction which is the rate determiningstep step1 No2+No2=No+No3(slow) step 2 No2+Co=No2+Co2(fast) |
| Answer» STEP 1 as SLOW step is the RATE DETERMINING step | |
| 29. |
When a candle burns, both physical and chemical changes takes place . Identify these changes. Give another example of a familiar process in which both the changes happen. Kindly Answer fast ... |
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Answer» when the candle burns the melted wax is KNOWN as physical change because we can make a candle again with the wax whereas when it burns the FIRE and HEAT is produces is chemical changeand this is the proper explanation PLEASE mark as brainliest |
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| 30. |
Q.1 Succinate dehydrogenase catalyzes formation of fumarate, Malonate can combine with the enzyme forming as EnzI at the same site, which type of inhibition is carried outa) Competitive or substrate analogb) None competitive reversible c) Irreversible d) none |
| Answer» COMPETITIVE or substrateExplanation: | |
| 31. |
What is the meaning of calcium symbol |
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| 32. |
What are hyperfine levels? |
| Answer» HYPERFINE structure is defined by small shifts and splittings in the energy levels of atoms, molecules, and IONS, due to interaction between the state of the nucleus and the state of the ELECTRON clouds.... HOPE this helps U ✨✌ | |
| 33. |
Q4. Which of the following is/are rigid form of matter? Alcohol, water, love, pen, brick, table, air |
| Answer» LOVE is the ANSWER EXPLANATION:PLEASE FOLLOW me | |
| 34. |
Why carbon atom is so significant? |
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Answer» Organic compounds make up the CELLS and other structures of organisms and carry out life processes. Carbon is the MAIN element in organic compounds, so carbon is ESSENTIAL to life on Earth. WITHOUT carbon, life as we know it could not exist. |
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| 35. |
5 things around you as pure or impure substances |
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Answer» Examples of pure substances include tin, SULFUR, DIAMOND, water, pure sugar (sucrose), table salt (sodium chloride) and baking SODA (sodium BICARBONATE). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements |
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| 36. |
Assertion copper oxide reacts with hydrogen to form copper hydroxide. Reason - Hydrogen acts as a reducingagent. |
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Answer» Given reason is correct explanation for assertion.Explanation:This is because Cu LIES below H in the ACTIVITY series so Cu can't replace H but here Hydrogen ACTS as a REDUCING agent which reduces Cu. |
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| 37. |
1F of electricity is passed through an HCl electrolyte solution |
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Answer» 35.5nfactor-1charge=1Famount of CL DEPOSITED??i HOPE this HELPS ( ╹▽╹ ) |
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| 38. |
Give two uses of polystyrene. |
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Answer» Polystyrene (PS) is used for producing disposable plastic cutlery and DINNERWARE, CD "jewel" cases, smoke detector HOUSINGS, license plate frames, plastic model ASSEMBLY kits, and many other objects where a rigid, economical plastic is desired. |
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| 39. |
Why is the molecular mass of polymer is always expressed as an average? |
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Answer» Because of this, polymer molecular WEIGHTS are usually given as averages. ... Since larger molecules in a sample weigh more than smaller molecules, the weight AVERAGE Mw is NECESSARILY SKEWED to higher values, and is always greater than M |
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| 40. |
Give the chemical reaction involved in the formation of Neoprene from chloroprene. |
| Answer» HOPE you GOT your answer.Explanation: | |
| 41. |
Give an example of biodegradable polymer. |
| Answer» HELLO, My friend your ANSWER is in below.Explanation:Example of biodegradable POLYMER: polyglycolic ACID. | |
| 42. |
Write the names of monomers of the following polymer: [AI 2016] |
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Answer» if the WINDOW and DOOR to door to door to door to door to door to door to door |
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| 43. |
Out of chain growth polymerisation and step growth polymerisation, in which type will you place the following. (—A—)m + (—A—)n → (A—)m (—A—)n or —(A—A—)m+n |
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Answer» X factor USA and Canada and the window and door to door to door toExplanation:ucfucfucgu is a good day good MORNING I am mad at me GIFT please find the ATTACHED file is scanned IMAGE in PDF format is a good |
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| 44. |
What does the part ‘6, 6’ mean in the name nylon-6, 6? [Chennai 2019] |
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Answer» They are the NUMBER of atoms in the constituent monomers of nylonExplanation:Adipic acid and HEXAMETHYLENE diamine are used to prepare nylon-6,6. Since hexamethylene diamine and adipic acid both have SIX CARBON atoms, the nylon they form is called nylon 6-6, or polyamide 6-6Hope that helps youPlease MARK as brainliest |
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| 45. |
Which factor imparts crystalline nature to a polymer like nylon? |
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Answer» jenfipq Birender is the windowAnswer:bbjxpqebcjr Pbfdqjp fejpq cpjwd PJ fwjp. pjsb pbwfuExplanation:JQ for hehhdnun qbxjoqdjx qdjpxu is a very good APP is a great weekend |
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| 46. |
Give an example of thermosetting polymer. |
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Answer» bmcxgj kfdicawjvzw |
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| 47. |
Which of the following is a thermoplastic polymer? Bakelite, Polystyrene, Urea-formaldehyde resin. |
| Answer» RENE HOP this will HELP you | |
| 48. |
Which of the following is a fibre? Nylon, Neoprene, PVC [AI 2014] |
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Answer» ☑️Nylon is the fibre‼️Hope it's HELP you__✌️❤️✔️ |
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| 49. |
Based on molecular forces, what type of polymer is neoprene? [AI 2014] |
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Answer» elastomerBased on molecular FORCES, NEOPRENE is elastomer. The POLYMER SHOWS elasticity.Explanation:plz mark it brainliest |
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| 50. |
Review QuestionsHow many atoms are in a water molecules |
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Answer» hi here is your ANSWEREXPLANATION:three ATOMSA water molecule CONSISTS of three atoms; an oxygen atom and two hydrogen atoms, which are BOND together like little magnets. |
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