Explore topic-wise InterviewSolutions in Current Affairs.

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.

Which part of Apple is harmful in how much dose of it can be Lethal to humans?​

Answer»

seedsExplanation: AMYGDALIN is a part of the SEEDS . it produces hydrogen CYANIDE which is very harmful

2.

EMISTRY Indicators are substances whose solutions change color in acids and bases. Observe thediagrams a) and b) and mention which artificial indicator is used in each case. Also write thecolour change of these indicators in acidic and basic solutions​

Answer»

What is EMISTRY FRIEND

3.

What is bygone in chemistry​

Answer»

here is the CORRECT ANSWER PLEASE mark NEW SUBSTANCE is prohibited

4.

1)-93 kJ 2)53. The standard heat of formation values of SF (g), s(9)and F(g) are -1100, 275 and 80 J mol- respecitvely.The energy S-F bond energy in SF.1) 309.2KJ2) 378.2KJ3) 284.6 KJ4) 261.8 KJof and CH​

Answer»

zjshjszjhzhzjzkzzjzhjKkdkdjshshshscaaxfwdqceExplanation:kakalaoalalavvxjsixhdeua

5.

Do sunscreen have sugar?

Answer»

hєчα mαtєSugars: A diet that is full of foods that CONTAIN SUGAR is more likely to contribute to the FORMATION of AGEs (ADVANCED glycation end- products).

6.

How do you get the H2 ,O3 ,CO ,NH3 ,N2O4 ,C4H10 formula mass ? please insert an explanation and i'll give you the branliest

Answer»

hey MATE here is your ANSWER....please MARK as BRAILIEST if you like it....

7.

What number do you add to get the H2 ,O3 ,CO ,NH3 ,N2O4 ,C4H10 formula mass ?

Answer»

er 4Practice Exercise4.1mol Al = 3.47 g Al1 mol Al26.98 g Al    = 0.129 mol Al4.2Uncertainty in MOLES = ±0.002 g24241 mol KSO174.25 g KSO    = ±1.15 x 10-5 mol K2SO44.3 Find the MASS of 5.64 × 1018 molecules of C18H38 (MW = 254.50 g/molg = 5.64 × 10181838183823183818381 mol CH254.50 g CH1 mol CH6.02210 molecules CH       ×   = 2.38 × 10–3 gg = 2.38 × 10–3 g = 0.00238 gMany laboratory balances can measure 1 mg (0.001 g); THEREFORE, it is possible to weigh 5.64 × 1018 molecules of C18H38.4.4 Formula mass of sucrose = (12 C)(12.011 g/mol) + (22 H)(1.0079 g/mol) +(11 O)(15.9994 g/mol) = 342.299 g/molIf the MASSING uncertainty is ±0.002 g what is the uncertainty of mol of sucrose?Uncertainty of mol of sucrose = ±0.002 g1 mol sucrose342.299 g    = ±5.8 × 10–6 mol sucroseUncertainty of molecules of sucrose = ±5.8 × 10–6 mol sucrose236.02210 molecules sucrose1 mol sucrose ×    =±3.5× 1018 molecules of sucrose4.5 Aluminum sulfate: Al2(SO4)3, the aluminum is Al3+mole Al3+ = 0.0774 mol SO42–3+242 mol Al3 mol SO −    = 0.0516 mol Al3+ 4.6 The formula of dinitrogen pentoxide is N2O5 ( )2 mol Nmol N = 8.60 mol O5 mol O   = 3.44 mol N atoms4.7( )1 mol O2 mol Fe55.85 g Feg Fe = 25.6 g O = 59.6 g Fe16.00 g O3 mol O1 mol Fe      

8.

OCH₃NONH₂,Brgccccvcccccc​

Answer»

Calbiochem CAS 70641-51-9 A cell-permeable and REVERSIBLE cytotoxic AGENT that SHOWS SELECTIVE cytocidal activity ...

9.

What are the causes of hardness of water​

Answer»

Dissolved calcium & magnesium salts in the WATER causes hardness - there are two types:Temporary hardness - caused by the presence of BICARBONATE salts; this can be removed by either boiling the water, which causes the salts to decompose into insoluble carbonates, or by treating with calcium hydroxide (which also results in the carbonate salt forming & precipitating out of solution)Permanent hardness - due to the presence of sulphate & chloride salts. These don’t decompose on heating, so have to be removed by chemical means (usually via ion-exchange resins or water softeners)The high MINERAL content can cause a variety of issues, including unwanted reactions with soaps (forming white precipitates rather than lathering - due to calcium stearate formation, which can also block plug holes & drains) and the formation of mineral coatings on the insides of pipes, washing machines & boilers.Mark me as brainlist if U get this..........

10.

Write formula Hydroxide of a non-metal ion with valency 1

Answer»

Hydroxide of a non METAL ION with VALENCY 1 is ammonium hydroxide. It is the only non metal hydroxide.NH4OH

11.

What is sublimation

Answer»

THE CHEMICAL CHANGE OF AN OBJECT DIRECTLY FROM SOLID TO GASEXAMPLE :-CAMPHORExplanation:HOPE IT WILL HELP YOU PLZZ MARK AS BRAINLIST

12.

Who were the greens and whites in about 50 to 80 words​

Answer»

They were the revolutions.Namely,             GREEN Revolution and WHITE Revolution.Green Revolution was STARTED by M.S.Swaminathan to increase agriculture and FOOD in INDIA.White Revolution was started by Dr.Verghese Kurien to increase milk production in India.

13.

Write the balanced chemical equation (1) sodium reacts with oxygen.​

Answer»

reacts with OXYGEN to form sodium oxide and has the FOLLOWING balanced chemical EQUATION: 4 Na + O2 --> 2 Na2O.

14.

The decomposition of nh3 on platinum​

Answer»

The decomposition of NH3 on PLATINUM SURFACE is zero order.Hope it'ss HELPFUL.............plz mark as brainlist..........EXPLANATION:

15.

Draw and describe concentration time graph

Answer»

tion:CONVERSELY, a graph of the concentration of any product as a function of time is a STRAIGHT line with a slope of K, a positive value. The graph of a zeroth-order REACTION. The change in concentration of REACTANT and product with time produces a straight line.

16.

Digene syrup which is shown below relieve belching, bloating and feelings of discomfort in th mach.DIGENEa) How does Digene syrup work?b) What is the nature of the substance present in it?c) Why is it called as antacid?.​

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a. Once digene syrup is consumed, it goes to the STOMACH and mixes with the excessive acid that is being produced because of acidity in the stomach and neutralizes it.b. The NATURE of the SUBSTANCE present in it is basic.c. It is CALLED an antacid because it is an edible BASE and neutralizes the extra acid produced in the stomach as a result of acidity.

17.

Atom contains_with positively charged protons.​

Answer» PROTONS ELECTRONS and NEUTRONS
18.

State the no of lone pair of electrons in oxygen molecule, ammonia molecule and nitrogen moleculeState the no of lone pair of electrons in oxygen molecule, ammonia molecule and nitrogen molecule

Answer»

Hey bro here is your ANSWER ,No. of LONE pair electrons in :-OXYGEN molecule = 4Ammonia =1Nitrogen molecule =2Mark it as BRAINLIEST

19.

Tick the correct atomic masses  687244ScandiumGalliumGermaniumScandiumGalliumGermanium​

Answer»

this is your ANSWER . PLEASE MARK my answer as BRAINLIST

20.

Hydrogen showed similarity with halogens and  alkali earth metalsnoble gasesalkali metals​

Answer» ALKALI metalsExplanation:if is CORRECT FOLLOW me and MARK me as BRAINLIEST
21.

Explain 4th state of matter.

Answer»

tion:Plasma, in physics, an electrically conducting MEDIUM in which there are roughly equal numbers of POSITIVELY and negatively charged PARTICLES, produced when the atoms in a gas become IONIZED. It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous STATES.

22.

28. Most basic oxide out of following(BY Na2o(3) MgO(2) CaO(4) FeO​

Answer» NA2O PLEASE MAT MARK ME AS THE BRAINLIEST AND FOLLOW ME✌️✌️HOPE YOU LIKE IT
23.

£llo❤️ Answer this⏬⏬⏬Ice at 08C appears colder to the mouth than water at 08C. Why?◆Note◆•No spamming allowed •No copied ans ​

Answer»

It because the latent heat. When we put COLD ice or water on mouth the ice start absorbe heat from our mouth. But when ice become water is need 80 CAL per GRAM water. THUS ice absorbe more heat than water. So it seems ice is colder than water

24.

Define tincture of iodine​

Answer»

e of iodine.Tincture of iodine, iodine tincture, or weak iodine solution is an antiseptic. It is USUALLY 2–7% elemental iodine, along with potassium IODIDE or sodium iodide, dissolved in a MIXTURE of ETHANOL and water. Tincture solutions are CHARACTERIZED by the presence of alcohol.

25.

What is the boiling point order among BF3, BCl3, BBr3

Answer»

BF3 > BCl3 > BBr3Explanation:SINCE FLUORINE is the smallest in the group the distance between boron and fluorine in the compound is LESS hence making it difficult to break the bonds.size increases in order:F < Cl < Brdistance between boron and the atom increases in order:B-F < B-Cl < B-Br∴ boiling point decreases in order:BF3 > BCl3 > BBr3

26.

Why does a gas exerts pressure onthe walls of the container in whichis it kept ?​

Answer»

articles in any gas moves with high speeds in all directions.when this particles STRIKE on the WALLS of the container,they exert force on them.☛ we know that thrust per unit area is called pressure.so,gases exerts pressure on the walls of the container due to the IMPACT of striking particles.☛ Matter :- matter may be defined as something that occupies space poesses mass and OFFERS resistance to any stress (force applied on it)☛ Intermolecular space :- Distance between two particles of matter is known as Intermolecular space.☛ Intermolecular force of ATTRACTION:-Force of attraction in between two particles of matter is known as Intermolecular force of attraction.☛ Diffusion :-The intermixing of the particles of two or more substance on their own is called diffusion.

27.

describe briefly the chemical nature natural sources physiological functions and deficiency syndromes of vitamin C​

Answer»

Explanation:SOURCES..Broccoli, Brussels sprouts, and cauliflower.Green and red peppers.Spinach, CABBAGE, turnip greens, and other leafy greens.Sweet and white potatoes.Tomatoes and tomato juice.Winter squash.Vitamin C plays an important role in many physiological processes in humans. It is needed for the repair of tissues in all parts of the body. The important functions of vitamin C INCLUDE the formation of protein used to MAKE skin, tendons, ligaments, and blood vessels for healing wounds and forming scar tissue, for repairing and maintaining cartilage, bones, and teeth and aid in the absorption of iron. It can also act as a reducing and capping agent for metal nanoparticles.Deficiency of vitamin C causes scurvy, widespread connective tissue WEAKNESS and capillary fragility.

28.

What is Monds process ???King Here (my crown is where)​

Answer»

d PROCESS, sometimes known as the carbonyl process, is a technique CREATED by Ludwig MOND in 1890, to extract and purify nickel. ... This process involves the fact that carbon MONOXIDE combines with nickel readily and reversibly to give nickel carbonyl.What is Monds process ???MARK my answer as Brainliest!!!

29.

Atomic radius is of the order 10 ^-8 cm and nuclear radius is of the order of 10^-13cm .calculate what fraction of atom is occupied by nucleus?

Answer»

10^15Explanation:to find space occupied we should find the areaarea =4/3 PI r^3so AREA of atom/area of nucleus =(10^-10)^3/(10^-15)^3 (since pi r^3get CANCELLED)=10^15

30.

How many heteroatoms are present in this structure question mark My book says it has only one or is it wrong ....pls explain pls I'll mark you the brainliest

Answer» TION:The no. of heteroatoms present in the above structure is 1 .Because the definitions of heteroatoms says that those ATOM in a molecular structure which is not carbon or hydrogen If it's helpful to you then please remark me as BRILLIANT
31.

Calculate the percentage of phosphorus in : (a) Calcium hydrogen phosphate Ca(H2PO2)2(b) Calcium phosphate Caz(PO2)2​

Answer» SWER is above QUESTION
32.

Which polymer used as fire proof and neat resistance​

Answer»

esistance of PTFE and fluoropolymers has been a UNIQUE performance leading to their usefulness in semiconductor FACTORIES and Chemical PROCESSING Industries (CPI). Limiting oxygen index (LOI) is the factor commonly used to compare the flammability of polymeric materials.itzDopeGirl

33.

Explain the properties of solution, suspension, and colloidal particles ​

Answer» TION:A solution is always transparent, LIGHT passes through with no scattering from solute particles which are MOLECULE in size. The solution is homogeneous and does not SETTLE out. ... A colloid is intermediate between a solution and a suspension. While a suspension will separate out a colloid will not.
34.

Oxidation no of K2HgI4

Answer»

tion:in the complex ,[HgI4]2 IODINE has a oxidation stage of-1 .so the total sum of oxidation number of Hg and I should EQUAL -2 THUS MERCURY has a oxidation number of +2 in NESSLER Reagentfollow me and mark brainliest

35.

What is deposition ? it is related to chemistry ​

Answer»

Depositional landforms are the visible EVIDENCE of processes that have deposited SEDIMENTS or rocks after they were transported by FLOWING ice or water, wind or gravity. Examples include BEACHES, deltas, glacial moraines, SAND dunes and salt domes.

36.

Write a balanced chemical equation for the following: a) When hard water is treated with soap

Answer»

Ca2+Mg2+ions PRESENT in HARD WATER REACTS with SOAP.

37.

Q2. which polymer used in making cook water and why?​

Answer»

tion:TEFLON, which is the trade name for POLYTETRAFLUOROETHYLENE (PTFE), is the polymer used to deposit non-stick COATINGS on COOKWARE

38.

Give structures of the following alchols​

Answer» NS of STRUCTURES 1 to 8
39.

A 6.90 M sol. of koh in water contains 30 percent by mass of koh.calculate the density of koh. plzz answer the following question❓❓​

Answer» 100 g solution CONTAINS 30 g KOHTherefore , 100d ML solution contains 3056 mol KOH , d = density in g/m 2 Molarity = 6.90 = 3056 × d100 × 1000 d ...PLEASE follow meverified answer
40.

Metal compound x reacts with an acid to produce effervescence the gas evolved extinguishes a burning candle pls answer fast..urgent will be marked brainliest

Answer»

Explanation:When METAL react with ACID it PRODUCES carbon di oxide GAS which extinguishes fire.

41.

K+F→K + + F − , Δ H was calculated to be 19 kcal under conditions where the cations and anions were prevented by electrostatic separation from combining with each other. The ionization potential of K is 4.3 eV. What is the electron affinity of F?

Answer»

QUESTION:K + F → K⁺ + F⁻ , Δ H was calculated to be 19 kcal/mole under conditions where the ANIONS and cations were prevented by electrostatic separation from combining with each other. The IONIZATION potential of K is 4.3 EV. What is the electron affinity of F?ANSWER:The electron affinity of F = 3.476 eV.GIVEN:K + F → K⁺ + F⁻Δ H was calculated to be 19 kcal/mol.The ionization potential of K is 4.3 eV.TO FIND:The electron affinity of F.EXPLANATION:

42.

Give me iupac name of following alcohol fast plz​

Answer» AC NAME of this ALCOHOL is 2−phenyl−2−butanol and this is a TERTIARY alcohol.
43.

Write two uses of phosphine gas​

Answer»

Phosphine is used in the SEMICONDUCTOR industry to INTRODUCE PHOSPHORUS into silicon crystals . It is also used as a FUMIGANT, a polymerization initiator and as an INTERMEDIATE for the preparation of several flame retardants. Phosphine has an odor of garlic or decaying fish but is odorless when pure.

44.

How much volume of 0.1 M H3PO3 (dibasic acid) solution is required for complete reaction with 400 ml, 0.3 M KOH solution?​

Answer»
45.

Naphthalene balls disappear with time without leaving any solid. name the process​

Answer» SUBLIMATION is the PROCESS INVOLVED in it
46.

The rms velocity of CO, at a temperature T(in Kelvin) is x cm/sec. At what temperature (in kelvin) therms velocity of nitrous oxide would be 4x cm/sec.(1) 16 T (2) 2T(3) 4T (4) 32 T​

Answer» 32 TExplanation:I don't KNOW the EXPLANATION
47.

Why is the path of light not visible in a solution?

Answer»

The path of the LIGHT is VISIBLE once the light particles are SCATTERED by the dispersion MEDIUM. In true solution as the scattering of light does not OCCUR as the particle size is too large. So path of light is not visible.Hope it helps

48.

(b) Density of water varies with temperature. What are itsconsequences?​

Answer»

tion:The main consequence is the water has its highest density at 4 degree celsius. This means the depth of the oceans have this temperature GIVING the life and animals the most stable conditions to live.Solidifies water converted into ice , if water have a the density more than ice than all the sea water from base would have BECOME ice and all the living creature living in it will eventually die. Additionally warm water  causes tremendous change in the AIR current which transfer heat from equator to TEMPERATE zone. Hence, play role in CONTROLLING climate of whole earth. Thanks!Hope it helps U.Good LucK!

49.

aluminum metal is added to copper(ii)chloride give 2 observations that indicate this is a chemical reaction

Answer»

tion:When you PUT aluminum in copper(||) chloride, the copper together the chloride eats AWAY at the aluminum. There is noticeable burning smell and some faint SMOKE as a result of the chemical reaction. As the copper chlorides WORKS away at the aluminum, the aluminum turning into a dark brown color.

50.

Why do we write hydrogen as h2 not as h??? Plzz tell me..

Answer» ANSWER in the above ATTACHMENT PLS do FOLLOW me