Saved Bookmarks
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. |
The symbol and IUPAC name for the element with atomic number 120 |
|
Answer» tion:Unbinilium, ALSO known as eka-radium or SIMPLY element 120, is the hypothetical chemical element in the periodic table with symbol Ubn and atomic NUMBER 120. Unbinilium and Ubn are the temporary systematic IUPAC name and symbol, until a permanent name is decided UPON. |
|
| 2. |
Aldehyde upon reaction with RMgX gives primary alcoholtertiary alcoholsecondary alcoholnone |
|
Answer» An alcohol is formed. One of the KEY uses of GRIGNARD reagents is the ability to MAKE complicated ALCOHOLS easily. hope you get it.. |
|
| 3. |
Which element has the lowest ionization enthalpy in group 2?? |
|
Answer» ᎻᎬY ᎷᎪᎢᎬ ᏌᎡ ᎪNᏚᏔᎬᎡ ᏆᏚ BERYLLIUM (Be).......#Be BRAINLY....#Be Brainly.... |
|
| 4. |
On which of the following ...AYUSIldnot applicable?OCl, Br, Im-OCa, Sr, BaOF, CI, BrOLi, Na, K. |
| Answer» | |
| 5. |
What is human being |
|
Answer» being is a member of the Homo sapiens species, characterized by walking on TWO feet, opposing thumbs, five fingers and binocular color vision. An example of a human being is George Washington. "Human being." YourDictionary. ORA MAN, WOMAN, or child of the species Homo sapiens, distinguished from other animals by superior mental development, power of articulate SPEECH, and upright stance.I HOPE IT IS HELPFUL TO YOU |
|
| 6. |
ɢᴏᴏᴅ ᴍᴏʀɴɪɴɢ ɢᴜʏꜱ ❤❤ ᴡʜᴀᴛ ᴀʀᴇ ᴛʜᴇ ʙɪᴏʟᴏɢɪᴄᴀʟ ɪᴍᴘᴏʀᴛᴀɴᴄᴇ ᴏꜰ ꜱᴏᴅɪᴜᴍ ᴀɴᴅ ᴘᴏᴛᴀꜱꜱɪᴜᴍ .... ❌don't give wrong answers❌ |
|
Answer» and potassium is very important in biological WORLD because it help in sodium potassium pump in human STOMATA open and close due to potassium potassium is ALSO help in ENERGY PRODUCTION in plants |
|
| 7. |
The method of collection of a gas is dependent on it's solubility and density when compared to air. Justify the statement with two good examples. Thank you. |
|
Answer» for the INCONVENIENCE CAUSED the other NAME was a LITTLE more than |
|
| 8. |
During the process of condensation, heat energy is added'. The given statement is true or false. plz ans fast! |
|
Answer» will be released to change from liquid to solid (fusion), GAS to liquid (condensation), or gas to solid. Latent HEAT of evaporation is the energy USED to change liquid to VAPOR. IMPORTANT: The temperature does not change during this process, so heat added GOES directly into changing the state of the substance. |
|
| 9. |
What was the importance of the Battle of Plassey? |
|
Answer» The Battle of Plassey was a major battle that took place on 23 June 1757 at Palashi, Bengal. It was an important British East INDIA Company VICTORY over the Nawab of Bengal and his FRENCH allies. It let the British East India Company take control of this part of the INDIAN subcontinent |
|
| 10. |
Calcium reacts with sulphate calcium loses electron Vera sulphate gains electrons which of the following properties is not shown by newly formed compound has high melting point has low melting pointconducts detrictionoccurs as solid |
| Answer» LOW MELTING POINT | |
| 11. |
X,Y and Z are all gases that behave ideally and react according to the equation shown. X(g) + 2Y(g) → 2Z(g) When 3.0mol of X and 3.0mol of Y are placed inside a container with a volume of 1.0 mol dm⁻³, they react to form the maximum amount of Z. The final temparature of the reaction vessel is 120°C. What is the final pressure inside the reaction vessel? |
|
Answer» The kinetics and mechanism of Ru III CATALYSED oxidation of 1,2,3,4-tetrahydronaphthalene (tetralin) by Ce IV in aqueous nitric ACID to tetralone under the conditions (TL) > > (Ce IV ) at different temperatures (30-50 deg C) have been studied in 3.0 mol dm -3 nitric acid medium. The EXPERIMENTALLY observed rate law conforms to -d(Ce IV )/dt = kK(Ce IV )(TL)(Ru III )/l + K(TL) + K(Ru III ). (author)PLEASE MARK ME AS BRAINLIST ANSWERS PLEASE PLEASE REQUESTING |
|
| 12. |
What is the atomic number of radium |
|
Answer» 88Explanation:Radium is a chemical element with the symbol Ra and atomic NUMBER 88. It is the SIXTH element in group 2 of the PERIODIC table, also known as the alkaline EARTH metals. |
|
| 15. |
The major product of the reaction between /n-dinitro benzene with NH4HS is (a) p-Dinitro benzene (b) m-Diamino benzene (c) m-nitroaniline (d) p-Diamino benzene |
| Answer» CPLEASE MARK ME AS BRAINLIST ANSWERS PLEASE PLEASE REQUESTING | |
| 16. |
Draw the structural formula of 1-phenylpropan-l-one molecule. |
| Answer» SORRY it is not a IMPORTANT QUESTION. | |
| 17. |
Compare the strength of following acids: (i) Formic acid, (ii) Acetic acid, (iii) Benzoic acid. |
| Answer» FORMIC acid:CH2O2 acetic acid: CH3COOH BENZOIC acid: C7H6O2 | |
| 18. |
An organic compound C7H9N forms clear solution when dissolved in KOH after reacting with C6H5SO2Cl, ‘A’ on diazotisation at 0°C and then reaction with β-naphthol gives orangish red dye. ‘A’ on electrophilic substitution gives single product. ‘A’ is (a) 4-Methyl aniline (b) 2-Methyl aniline (c) 3-Methyl aniline (d) N-Methyl aniline |
| Answer» OPTION A is the CORRECT ANSWER. of the QUESTION | |
| 19. |
Arrange the following in increasing order of acidic character: HCOOH, ClCH2COOH, CF3COOH, CCl3COOH |
| Answer» | |
| 20. |
Write IUPAC name of the following compound: [AI 2014(C)] |
| Answer» | |
| 21. |
Give some industrial uses of methanoic acid. |
|
Answer» me industrial uses of ethanoic acid.Uses of Ethanoic acid:-Its is used in the preparation of CELLULOSE acetate which if used for making photographic film.It is used in coagulation for rubber from latex and casein.It is used for making vinegar.It is used as a laboratory reagent.It is used as anti fungal agent.It is used as a blood cells lygenig agent.Other information:-☆Ethanoic acid is COMMONLY KNOWN as ACETIC acid.☆Ethanoic acid belongs to group of carboxly acids.☆The formula of Ethanoic acid is CH3COOH.☆Ethanoic acid is colour less liquid.☆Ethanoic acid is second simplest carboxylic acid.Thank you...!! |
|
| 22. |
Write the structural formula of 2-phenylethanoic acid. [Foreign 2013] |
|
Answer» 2-Phenylethanoic acid CHLORIDE | C8H8ClO2- - HOPE it HELPS you out and PLEASE mark me as BRAINLIEST |
|
| 23. |
Higher carboxylic acids are practically insoluble in water. Give reason. |
| Answer» Z xvzubehz euz eiaivdicbtiosnax X djx FIR zbhf RIS zthank You | |
| 24. |
Write the structure of 2-hydroxy benzoic acid. [AI 2014] |
| Answer» TION:the STRUCTURE of 2-hydroxy BENZOIC ACID | |
| 25. |
What is polycot? give examples |
| Answer» POLYCOT is a fabric which is a mixture of cotton and polyester fibres. Cotton is a NATURAL fibre obtained from the cotton plant while polyester is a synthetic fibre MADE from PETROLEUM, coal, air and water.Hope it HELPS you!! | |
| 26. |
50g salt is dissolved in 250ml solution Calculate the %[w/v concentration]. |
| Answer» 20 PERCENT is RIGHT ANSWER | |
| 27. |
Question 2 Most metals have high melting and boiling points. This is described as having _________ ? a. Low ductility b. High volatility c. Low volatility Question 4 Which of the following element is an exception to these properties?: Hard Sonorous Good malleability Good ductility a. Aluminium b. Mercury c. Titanium Question 15 Which of the following is an iron alloy? There may be more than one answer. a. Bronze b. Steel c. Pewter |
| Answer» B. high volatility and of q2 MERCURY is the ANSWER of q4stell is the answer of Q15 | |
| 28. |
Please answer this multiple choice Question |
|
Answer» methylpropan-2-ol3) BENZENE 1,3 diol4) metamers5)AI HOPE this HELPS ( ╹▽╹ ) |
|
| 29. |
20g chloroform is dissolved in 80g benzene. Calculate the percentage(w/w concentration). |
| Answer» | |
| 30. |
differentiate between saturated solution and colloid on the basis of three factors like tyndall effect and stability and mixture |
|
Answer» A colloid is an intermediate state of true SOLUTION and suspension. A colloid is a homogeneous system in which one substance is DISPERSED (known as dispersed phase) as very fine particles in other substance called the dispersed medium.Example - Milk in water. Here, milk is the dispersed phase where as the water is dispersed medium.A saturated solution consist of high concentration of SOLUTE mixed in solvent.Example - Salt water. Here, salt is solute and water is the solvent.The difference between these two acccording the factors like tyndall effect, stability and mixture.A colloid is able to CREATE TYNDAL effect because of the presence of big particles like proteins and fats, on the other side saturated solution cannot produce tyndall effect.Both of them are stable because the particles do not get settled down.A saturated solution can be said as mixture because of high concentration of solute and because it is heterogeneous, on the other side a colloid is not a mixture because it is homogeneous. |
|
| 31. |
Which of the following statement is wrong? (A) Kh increase with increase in temperature.(B) With increase in temperature, the solubility of gaseous solute in liquid decrease.(C) Kh remains constant with change in temperature.(D) p * X |
| Answer» OPTION b is the CORRECT ANSWER to the problem given above. | |
| 32. |
What does the pH of 1 mean in a solution |
|
Answer» Ph is the chemical conditions of the solution. It reflects how acidic, neutral, or alkalic it is. For example Bleach is basic/alkalic compared to LEMONS, which are acidic, but a common liquid LIKE water, is neutral. The pH of a solution is a MEASURE of the molar concentration of HYDROGEN ions. |
|
| 33. |
Ethanal is soluble in water. Why? [AI 2011] |
| Answer» HEY mate here's ur answerExplanation:ethanol is soluble in water because it is Polar solvent and LIKE like dissolves PLZZ MARK ME AS BRAINLIST☺ | |
| 34. |
How will you convert 3-hydroxybutanal from ethanol? Write chemical reaction. |
|
Answer» golpo is that a LOT to learn how are not an option is the only thing I did a little better but not for your help and advice to you by any MEANS you have to PAY to you on your own personal and professional with my name and address for a long shot and I am LOOKING to do a search for |
|
| 35. |
Write the chemical equations for the following chemical reactions: Benzonitrile is converted to acetophenone. |
|
Answer» BlCO3+M3KH4->PNO3H4BL |
|
| 36. |
Which aldehyde does not give Fehling’s solution test? |
|
Answer» tion:Aldehydes that lack alpha hydrogens, such as BENZALDEHYDE or pivalaldehyde (2,2-dimethylpropanal) cannot FORM an ENOLATE and thus do not give a POSITIVE Fehling's test result under USUAL conditions. |
|
| 37. |
Write the IUPAC name of the following compound: [Foreign 2014] |
| Answer» CHLORIDE hydroxidethis is the ANSWER | |
| 38. |
Write the structure of 4-methylpent-3-en-2-one. [Foreign 2013] |
|
Answer» Don't KNOW. MARK it as BRAINLIEST..... # FOLLOW me..... |
|
| 39. |
Write the IUPAC name of the following compound: [Chennai 2019] |
| Answer» METHYL VINYL ketoneExplanation:HOPE HELPS U | |
| 40. |
Write the structure of 4-chloropentan-2-one. [AI 2014; Delhi 2013] |
|
Answer» tion:4-chloropentan-2-one H CL H H HH C - C - C - C - C - H H H H O H |
|
| 41. |
Write the structure of p-Methylbenzaldehyde molecule. [AI 2014; Delhi 2013] |
| Answer» TION:The STRUCTURE of p-Methylbenzaldehyde MOLECULE is above ATTACHED | |
| 42. |
Explain Gay Lussac Law |
| Answer» NG to this law, in a CHEMICAL reaction involving gaseous reactants or products, the volumes of the GASES can be expressed in simple whole number RATIO provided all the gases are at the same temperature and PRESSURE. | |
| 43. |
Write the structure of the following compound: 3-oxopentanal. [Foreign 2011] |
| Answer» HEY MATE here's UR answerExplanation:3-OxopentanalMolecular FormulaC5H8O2Average mass100.116 DaMonoisotopic mass100.052429 DaPLZZ MARK ME AS BRAINLIST☺ | |
| 44. |
Write the structure of 3-methylbutanal. [Delhi 2013] |
| Answer» HEY mate here's ur answerExplanation:CHEBI:16638DefinitionA methylbutanal that is butanal SUBSTITUTED by a methyl GROUP at position 3. It occurs as a volatile CONSTITUENT in olivesPLZZ MARK ME AS BRAINLIST☺ | |
| 45. |
classify the following as element,compound, mixture : sugar, iron, soil, water, oxygen,nitrogen, salt, milk, salad, chlorine |
|
Answer» Question 10. CLASSIFY the following into elements, compounds and mixtures.r/> Question 11. ... Mixtures: SOIL, SUGAR, Coal, AIR , Soap and Blood. ... (C) Mixing of iron filings and ... |
|
| 46. |
Mole fraction of A vapours above solution in mixture of A and B (XA = 0.4) will be :- (PA° = 100mm, PB° = 200mm) (1) 0.4 (2) 0.8 (3) 0.25 (4) None |
|
Answer» you've pretty much reached Genius status when you've been ANSWERING and HELPING your Brainly peers for a long time, posting thoughtful, HIGH quality answers. You know your way around Brainly like the back of your hand and others trust you for your insightful and EXTREMELY helpful solutions to their questions. You truly are the best of the best, an exemplary Brainly user and have reached the pinnacle of your Brainly career. KEEP up the good work! Explanation: |
|
| 47. |
Give two examplesvariable valency:of elements showing |
| Answer» SOMETIMES, same element may EXHIBIT one valency in one compound and another valency in other compound. This property is called as variable valency.Elements that show variable valency areIron (Fe)2,3Copper (CU) 1,2Mercury(Mg)1,2Lead (Pb) 2,4Tin(Sn)2,41,2,4 are the DIFFERENT valencies SHOWN by a single element. | |
| 48. |
Write the rate expression for N2+3H2=2NH3 |
| Answer» MARK AS BRAINLIESTrate 5 is the RATING of mehope U UNDERSTAND | |
| 49. |
Draw a metal complex [pt(py)2NH3Cl2] in cis-tran form |
| Answer» TION:Hope it will surely HELP U MARK as BRINLY Tnqq | |
| 50. |
List out different types of silk we get from different types of silkworm |
|
Answer» Pls mark as BRAINLIEST and follow me ❤️ Explanation:there are four types of natural silk PRODUCED around the WORLD: MULBERRY silk, Eri silk, Tasar silk and Muga silk. Mulberry silk contributes around as much as 90% of silk production, with the mulberry silkworm generally being regarded as the most important. |
|