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. |
Different gases of air can be separated by : a) fractional distillation b) fractional sublimationc) fractional crystallizationd) filtration |
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Answer» ong>Answer: correct answer is |
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| 3. |
Nswer the following questions.4. Differentiate between Isotopes andIsobars. |
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Answer» ONG>ISOTOPES:the element which have the same ATOMIC no and chemical properties but differ in atomic weights or masses. Isobars;the elements having the same atomic MASS but DIFFERENT atomic no and chemical properties |
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| 4. |
For the reaction 2A + B → C, rate of disappearance of A 0.076 mols-1 .a) What is the rate of formation of C?b) What is the rate of consumption of B?c) What is the rate of the overall reaction? |
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Answer» rnoon EVERYONE |
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| 5. |
What Is The Role Of Moisture In The Reaction Between Hydrogen And Chlorine |
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Answer» ong>ANSWER: Moist hydrogen gas COMBINES with chlorine in the presence of diffused SUNLIGHT to form HCl . Explanation: PLEASE mark it brainliesst |
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| 6. |
We won't to go protest appeared in Harvard crimson . this crimson is in |
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Answer» ONG>Answer: newyork CITY 5lane 231 phase .... |
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| 7. |
9 HUN Horgo(d) decreased nuclear UldiyuWir(c) similar electronic configurationGive short answers)Write the valence shell electronic configuration of an element present in the 30ele |
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Answer» ONG>ANSWER: lyfypdpydpufotdo6dp6dp6dp6p7d |
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| 8. |
Why there is Variation inAtomic andIonic SizesofTransitionMetals |
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Answer» ong>Answer:P> From left to right across a period, effective nuclear charge increases in the transition series, just like in the p block, and so ATOMIC size decreases. Here the electrons are being added to the d orbital, where shielding is relatively poor compared to the p orbital. |
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| 9. |
Compound 'X' is the second member of the homologous series which has a generalformulaC.H.Write the name of the series and the structural formula of thecompound X. |
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Answer» ong>ANSWER: The name of the second member of HOMOLOGOUS SERIES is Propene with chemical FORMULA C3H6 it BELONGS to the group of alkenes HOPE THIS IS HELPFULL |
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| 10. |
ESelect from the list the gas that matches thedescription given in each case: [5]Methane, Hydrogen sulphide, Nitrogen dioxide,Sulphur dioxide, Ammonia(i) The poisonous gas that does not affect Earth.gasthat remains in the Earth for 15 years.(ii) A reddish brown gas formed by oxidation ofnitric oxide.(ii) The(iv) A foul smelling acidic gas which turns leadacetate paper silvery black.(v) A gas having a pungent choking smell usedto bleach fruit juices.Give appropriate scientificnofor |
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Answer» ong>Answer: Hey mate here is your answer! Explanation:
HOPE it helps you friend Plz mark my answer as BRAINLIEST and thank my answer ALSO PLEASE |
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| 11. |
Heating curveter wax Hes in a200 -150 -Hydre10050 -SulisCH1 2 3 4 5 6 7 8 9 10 11 12What is the melting point of this wa(b) How long is it before all the wax hasWhat is the boiling point of this wa(d) Why do we say 'wax vapour' andgaseous wax |
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| 12. |
1.what is charge and types of charge.and formula. hii.I'm gud and what about you.gud evening |
| Answer» ONG>ANSWER: | |
| 13. |
1. Find the product of the following pairs ofmonomialsnialsi) -4p |
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Answer» ONG>ANSWER: hlcoycoyxphxypxyoxogxlhzhpc |
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| 14. |
आई थिंक दैट ही इज बेटर दैन ही इज गुड बेटर बेस्ट विद करेक्ट एडजेक्टिव |
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Answer» ong>Explanation: The train pulled out of the station. Pranjol BURIED his nose in his detective book again. Rajvir too as an ARDENT fan of detective stories, but at the moment he was keener on looking at the beautiful scenery. It was green, green everywhere. Rajvir had never seen so much greenery before. Then the soft green paddy fields gave way to TEA bushes. It was a magnificent view. Against the backdrop of densely wooded hills a sea of tea bushes stretched as far as the eye COULD see. (1) The phrase ‘buried his nose’ in the extract suggests… (a) had severe cold (b) was deeply engrossed (c) could not read properly (d) none of these three (2) …………… looked in the background of the teabushes. (a) paddy fields (b) hills covered with thickly trees GROWN (c) beautiful scenery of sea (d) sturdy shade trees |
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| 15. |
जब शक्कर में जल घोल दी जाये तब एन्ट्रापी पर क्या प्रभाव पड़ेगा |
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Answer» ong>ANSWER: haan padega |
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| 16. |
Give one example of ionisation isomerism |
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Answer» ong>Answer: Here is your answer. Explanation: Ionisation isomerism is shown by such compounds in SOLUTION that give DIFFERENT IONS although they possess the same CHEMICAL composition. ... One example of ionisation isomerism is [CO(NH3)5SO4]Br and [Co(NH3)5Br]SO4. |
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| 17. |
If an atom has 32 electrons, for how many electrons, the spin quantum no. Is - 1/2 |
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Answer» ONG>ANSWER: I which CLASS are you in? |
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| 18. |
State were Recorgazied based onwas |
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Answer» ong>Answer: Soon after independence, 571 princely STATES were reorganised and merged together to form 27 states. This reorganization was DONE based on political and HISTORICAL CONSIDERATIONS. This reorganization of states was done on a temporary basis. |
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| 19. |
gaseous to liquid state, typically by cooling it. In this problem, a stream of humid air (31.6 mole% N2, 8.4 mole% O2 and water) enters a condenser in which 90% of the water vapor in the humid air is condensed and removed as liquid water. It is determined that the flow rate of this liquid water leaving the condenser as 500 cm3/hr. Given the properties for the substances as following: Water (SG 1.00 and MW 18.016), N2 (SG 0.967 and MW 28.02) and O2 (SG 1.105 and MW 32.00).Calculate the total flow rate (mol/hr) of the gas stream leaving the condenser. |
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Answer» hhhhhhhhhhhhhh okkkkkkkkkkkkkkkkkkk |
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| 20. |
Chemical reactions involve a change of energy during the course of the reaction |
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Answer» ONG>Answer: YES. The energy is OBTAINED through CHLOROPHYLL. |
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| 21. |
what is the material possessing adhesive and cohesive properties and capable of bonding material like stone,bricks etc |
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Answer» ong>Answer: Cement is a dirty GREENISH heavy powder and finds its importance as a building material. It can be described as material possessing ADHESIVE and cohesive properties and CAPABLE of bonding materials LIKE stones, bricks, building blocks etc. Cement has the property of setting and hardening in the PRESENCE of water. |
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| 22. |
Translate the following word equation into balanced chemical equations: 1. During winter in certain parts of the world, magnesium chloride is sprinkled on sidewalks to minimize ice formation.It is produced from the reaction of magnesium metal and chlorine gas. 2. Chlorine gas is commonly used to disinfect water in drinking supplies and pools. In the laboratory , it is produced together with sodium metal by passing an electric current through hot, molten liquid sodium chloride. 3. Aqueous silver nitrate reacts with potassium iodide to produce potassium nitrate and lead iodide precipitate. 4. Some over the counter antacids contain calcium carbonate, which reacts with hydrochloric acid in the stomach to produce calcium chloride, carbon dioxide and water. |
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Answer» ong>Answer: Translate the following word equation into balanced chemical equations: 1. During winter in certain parts of the world, magnesium chloride is sprinkled on sidewalks to minimize ice formation.It is produced from the REACTION of magnesium metal and chlorine gas. 2. Chlorine gas is commonly used to disinfect water in drinking supplies and pools. In the laboratory , it is produced together with sodium metal by passing an electric current through hot, molten LIQUID sodium chloride. 3. Aqueous SILVER NITRATE reacts with potassium iodide to produce potassium nitrate and lead iodide precipitate. 4. Some over the counter antacids contain calcium carbonate, which reacts with |
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| 23. |
Name some of the derivative of benzene |
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Answer» ong>EXPLANATION: Many important chemical compounds are derived from benzene by replacing one or more of its HYDROGEN atoms with another functional group. Examples of simple benzene derivatives are phenol, toluene, and aniline, ABBREVIATED PhOH, PHME, and PhNH2, respectively. Linking benzene rings gives biphenyl, C6H5–C6H5. Classification: Organic compound, Aromatic compounds More general ingredient: Petroleum |
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| 24. |
Give Two examples for Oxidation_reduction reaction |
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Answer» ong>Explanation: (1):- 2 Mg + O2 2 [Mg2+][O2-] (2):- Mg Mg2+ + 2 e- (3):- O2 + 4 e- 2 O2- (4):- CO(G) + H2O(g) CO2(g) + H2(g) |
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| 25. |
Distinguish between Isothermal and Adiabatic process |
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Answer» ONG>ANSWER: Above is your answer. Explanation: @Ask The MASTER |
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| 26. |
Geometry stucture in pcl5 by vsper theory |
| Answer» SE MARK as BRAINLIEST | |
| 27. |
Calculate the formal change of oxygen in o3 molecule |
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Answer» ONG>ANSWER: pydotdpydirsp7dirsp7ro5dp7 |
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| 28. |
give two examples from your daily life where you find the use of the fact that all matter occupy space |
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Answer» er: Explanation: two examples from your daily life where you find the use of the fact that all MATTER occupy space are:- 1. Plants 2. Animals 3. Sun 4. SOLAR system 5. Everything around us occupy space. |
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| 29. |
A force of 12N acts on an object of mass of 4kg in the state of rest for 3s. Calculate the kinetic energy acquired by the object. |
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Answer» ONG>Answer: 5ttttttttttttyyyiwiiwjejeudjej |
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| 30. |
1. Why molarity is a temperature dependent quantity |
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Answer» ong>Answer: Molarity is a temperature-dependent parameter. The VOLUME of a solution increases with an INCREASE in temperature diye to increase in intermolecular spaces and vice versa. Hence, molarity is affected by temperature CHANGE. |
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| 31. |
Solids can diffuse yes or no . |
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Answer» ONG>Answer: YES.... Explanation: Answer: "They do not sweat and whine about their condition" - in this sentence the "figure of speech" used is tautology. Explanation: This sort of "figure of speech" involves two or more words in a sentence which have the similar meaning. |
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| 32. |
What harkat?actually tanvi shayari krte krte points gaye..xD |
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Answer» e do...!!!! |
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| 33. |
What will happen if i throw a fipull bag of sodium into the river will it explode or not? |
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Answer» ong>Answer: What exactly u want..??? I know trigonometry. do u want from chapter no.8 in GEOMETRY..??? The REACTION produces jets of hydrogen gas below the water, which propels the sodium. ... If sodium gets hot enough, the hydrogen JET can IGNITE and burn, rising the temperature of the reaction even further. This raises the reaction time so QUICKLY that an explosion may occur — which is exactly what happened here. |
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| 34. |
Explain charcoal cavity test And write activity to prove and reaction |
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Answer» ong>EXPLANATION: |
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| 35. |
Explain charcoal cavity test Android activity to prove and reaction |
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Answer» ong>Answer: This test is based on the FACT that metallic carbonates when HEATED in a charcoal cavity DECOMPOSE to give corresponding oxides. The oxides appears as coloured incrustation or residue in the cavity. In certain cases, the oxides FORMED producing beads or seales. |
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| 36. |
The equation relating boiling point elevation to the concentration of solution |
Answer» ONG>Answer:The result is that in dilute ideal solutions, the extent of boiling-point elevation is directly proportional to the molal concentration (amount of substance per mass) of the solution according to the equation: ΔTb = Kb · B. where the boiling point elevation, is defined as Tb (solution) - Tb (pure solvent).Explanation: hope this HELPS you be happy and take care fllw please mark my answer brainlist thank U |
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| 37. |
Finally!!!!Ihave 3 points left now and..am on expert..coz am genius..xD |
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Answer» 's a SIGN of EXTRAORDINARY PROGRESS |
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| 38. |
Collect metal vessels and various metal articles.Write detailed information. Write steps inthe procedure that can be done in the laboratoryfor giving glitter to these. Seek guidance fromyour teacher |
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Answer» ong>Answer: Monetized benefits included reductions in medical costs and mortality ASSOCIATED with diarrheal DISEASES, productive TIME SAVED from fewer diarrhoea cases and accessing outside DEFECATION options, and increase in the property value of having a toilet |
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| 39. |
U didn't prove that I asked prove me..xD |
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Answer» ong>ANSWER:
I can't POST on FACEBOOK and Twitter Explanation: |
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| 40. |
What is diagonal relationship in periodic table? |
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Answer» ong>ANSWER: A Diagonal Relationship is said to exist between certain pairs of diagonally adjacent elements in the second and third periods of the PERIODIC table. ... On crossing a period of the periodic table, the size of the ATOMS decreases, and on DESCENDING a group the size of the atoms increases |
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| 41. |
What do you mean by spledFREE POIN..TS |
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Answer» D as abbreviation MEANS "Scaffolding PROCEDURAL Learning to Extended Discourse" |
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| 42. |
What happen when acid and basickept in water solution. |
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Answer» ong>Answer: ADDING water to an ACID or base will change its pH. Water is mostly water molecules so adding water to an acid or base reduces the CONCENTRATION of ions in the solution. |
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| 43. |
2/3 is what percent of 1/3 ? |
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Answer» ong>Answer: A) 50% is your answer. Explanation: I hope it help U |
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| 44. |
Principle of polycrylamide gel electrophoresis (PAGE) |
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Answer» ong>Answer: When proteins are SEPARATED by electrophoresis through a GEL matrix, smaller proteins MIGRATE FASTER due to less resistance from the gel matrix. ... Polymerized acrylamide (polyacrylamide) forms a mesh-like matrix suitable for the separation of proteins of typical size. |
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| 45. |
a solution has 50g of salt and 320g of water. calculate the mass percent of the salt in the solution. |
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Answer» ong>Answer: 50 × 100 = 320 × x 5000/320 = x x = 15.625
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| 46. |
Explain the statement : ‘Plastic Dinosaurs are made from Real Dinosaurs’ with the help of scientific knowledge of organic chemistry. (Make connections with the Key concept and Related concept of the unit : Change and Forms) Your answer should include following terms : Fractional Distillation Petrochemicals Polymer Thermoplastic Carbon cycle Fossil fuel |
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Answer» ong>Explanation: Fractional distillation is a type of distillation which involves the separation of miscible liquids. The process involves repeated distillations and condensations and the mixture is usually separated into COMPONENT PARTS. The separation happens when the mixture is heated at a CERTAIN temperature where fractions of the mixture START to vaporize. The basic principle of this type of distillation is that different liquids boil and evaporate at different temperatures. So when the mixture is heated, the substance with LOWER boiling point starts to boil first and convert into vapours. |
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| 47. |
Q4. Give IUPAC name of the compound given below. CH, CH-CH-CH-CHŁCH,CIOH(a) 2-Chloro-5-hydroxyhexane(b) 2-Hydroxy-5-chlorohexane(C) 5-Chlorohexan-2-ol(d) 2-Chlorohexan-5-ol |
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Answer» ong>Answer: d is the correct answer hope it HELPS you good evening have a nice TEA with ur FAMILY and friends Explanation: good evening ! |
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| 48. |
Ppt of biomolecules plz send |
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Answer» ong>Answer: A biomolecule is a chemical COMPOUND found in living organisms. These INCLUDE chemicals that are composed of mainly carbon, hydrogen, OXYGEN, nitrogen, sulfur and phosphorus. BIOMOLECULES are the building BLOCKS of life and perform important functions in living organisms. Explanation: __hope it will help you__ |
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| 49. |
What is the IUPAC name ? |
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Answer» ong>Answer: INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY Explanation: THIS IS THE ANSWER TO THE QUESTION . HOPE IT HELPS YOU. PLEASE MARK MY ANSWER AS BRAINLIEST |
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| 50. |
These heterostoms and the group containing these confer specific properties to the compound , regardless ofthe length and nature of carbon chain and hence arecalled functional group. can anyone explain plz |
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Answer» ONG>Answer: sorry dear but I don't know and sorry for spam u wanna u can report it Explanation: |
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