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.

Who is bored and answer this WHATS IUPAC any social medias?

Answer» INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY.
2.

. Ques3. How many moles are present in 4 gram of sodium hydroxide? (atomic mass of[sodium=23 u, oxygen= 16 u and hydrogen = 1u).​

Answer» TION:NaOH SODIUM hydroxideGram MOLECULAR Mass=Mass of Na+Mass of O+Mass of H=23+16+1=40gGiven mass=160gNo. of MOLES= Gram Molecular Mass _________________Given mmas=40___160 =4 molThe moles of NaOH contained in 160g of it is 4 mole
3.

1)a) sulphur6) Aluminiumc) Sodiumd) LithiumAn element which exhibits t3 valency​

Answer» B IA a anwerExplanation:I have ONLINE ACCESS to this EMAIL
4.

Equations of copper with concentrated nitric acid.​

Answer»

Nitric acid reacts with copper according to the reaction: 4 HNO3(L) + Cu(s) ==> Cu(NO3)2(s and aq) + 2 NO2(g) + 2 H2O(l) The copper nitrate salt that FORMS is a deep blue color.

5.

Calculate the relative molecular mass of each of the following: (i) Magnesium nitrate crystals [Mg(NO3)2. 6 H2O] (ii) Potassium dichromate [ K2Cr2O7] [ Atomic mass of Mg=24, N=14, O=16, H=1, K=39, Cr=52]

Answer»

rfdhaeszujszrtfesatfhrtfghgeazrthyae5ryerfgtearhygearthygerthuaetrExplanation:

6.

Anilene > flurobenzene​

Answer»

bavdhdhdnevskxsbvsvx

7.

What charge present on the particle which revolve around the nucleus?​

Answer»

leus contains TWO types of SUBATOMIC PARTICLES, protons and NEUTRONS. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move AROUND the nucleus. The electrons have a negative electrical charge.

8.

Give two reasons for supposing that water is a compound and not a mixture​

Answer» GIVE two reasons for supposing that water is a compound and not a mixture.Its constituents Hydrogen and oxygen are always present in the same ratio as 2:1(H2O)Its PROPERTIES are DIFFERENT from its constituent elements(hydrogen and oxygen)
9.

Odd one out Duralumin, Brass, Bronze, Aluminum​

Answer»

brasss. is the only ALLOY in the GROUP

10.

The process of redistributiondifferent atomicorbitalvalance shell,having comparableenergyisolated gasesatom​

Answer»

tion:In physics and chemistry, ionization energy (American English spelling) or ionisation energy (British English spelling) is the minimum amount of energy required to remove the most loosely bound electron of an ISOLATED neutral GASEOUS atom or molecule.[1] It is quantitatively expressed asIonization energy trends plotted against the atomic number. The ionization energy gradually increases from the alkali metals to the noble gases. The maximum ionization energy also DECREASES from the first to the last row in a given column, due to the increasing distance of the valence electron shell from the nucleus.X(g) + energy ⟶ X+(g) + e−where X is any atom or molecule, X+ is the ion with one electron removed, and e− is the removed electron.[2] This is generally an endothermic process. As a rule, the closer the outermost electrons to the nucleus of the atom, the higher the atom's ionization energy.The sciences of physics and chemistry use different units for ionization energy.[3] In physics, the unit is the amount of energy required to remove a SINGLE electron from a single atom or molecule, expressed as electronvolts. In chemistry, the unit is the amount of energy required for all of the atoms in a mole of substance to lose one electron each: molar ionization energy or approximately enthalpy, expressed as kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol).[4]Comparison of ionization energies of atoms in the periodic table reveals two periodic trends which follow the rules of Coulombic attraction:[5]Ionization energy generally increases from left to right within a given period (that is, row).Ionization energy generally decreases from top to bottom in a given group (that is, column).please mark me as brainlist

11.

Please amswer this question ​

Answer»

don't KNOW don't know don't know

12.

Equations of concentrated sulphuric acid and sugar​

Answer»

Answer. When concentrated SULPHURIC acid reacts with sugar it ACTS as a dehydrating agent; REMOVING water from the sucrose. ... C12H22O11 (sugar) + H2SO4 (sulfuric acid) → 12 C (CARBON) + 11 H2O (water) + mixture of water and acid. It is an EXTREMELY exothermic reaction producing much heat.Explanation:Mark me as the brainliest..

13.

Who all think that cats are better than dogs?​

Answer» THINK so cat are better than dogs because they are cute but they are clever ALSO and their teeth are very sharp that can harm you and cat can't protect your home from THIEVES also , either dogs protect your home from thieves so I think dogs are better than catsMy VOTE ALWAYS be for dogs
14.

A covalent compound formed between an element of period 1, group 1& a halogen in period 3​

Answer»

PCl5-Phosphorus PENTACHLORIDE

15.

Please answer it not spam ​

Answer»

H2O2 has OPEN book STRUCTURE Explanation:REFER NCERT

16.

Odd one out Oxygen, Hydrogen, Nitrogen, Gold​

Answer»

iend the ANSWER for this answer is here:It is GOLD because the REST ELEMENTS are gases.Hope this HELPS you!!!

17.

Equations of nitrogen dioxide and water​

Answer» NITROGEN DIOXIDE and WATER Reaction | NO2 + H2O.
18.

Discuss the hyberdization of Water and Co2?​

Answer»

jknalhddodbmddhrjdjrndkdgvExplanation:njwdnidjdkdbdkedekehekdhr

19.

Sabun ke vibhinn namuno ki amliyat ka addhyan karna ​

Answer»

I hope it's helpful EXPLANATION:PLEASE follow and MARK as brainliest

20.

(21 Zing displaces Coppes from asolutioncopper ll sulphate​

Answer» THEREFORE, zinc DISPLACES COPPER from CUSO4 solution. The correct ANSWER is copper.
21.

87809.3​

Answer»

87,809.3Explanation:HOPE it HELPS you this ANSWER

22.

A factor which leads to the decompostition of silver nitrate in the labrotary

Answer»

Silver nitrate decomposes when heated: 2 AGNO3(l) → 2 Ag(s) + O2(G) + 2 NO2(g)

23.

Equations of zinc and dilute sulphuric acid​

Answer»

[ZN(OH2)6]2+Explanation:I HOPE It HELPED you

24.

Correct and rewrite the given in correct statements - a) When Chlorine atom donates a unit negative charge, it is called Chloride ionc) Sodium atom gets a unit negative charge and is called sodium ion.​

Answer»

1. A negatively charged ion is KNOWN as an anion. ... As shown in Figure 2.8, sodium commonly donates an ELECTRON to chlorine, becoming the cation Na+. When chlorine accepts the electron, it becomes the chloride anion, Cl–. With their opposing charges, these two ions strongly attract each other.it called chlorine anion2. Thus, the sodium ion has a net charge of 1+, and it has become a cation—a positively charged ion. ... It has become an anion, or a negatively charged ion. Note: When neutral ATOMS gain electron(s) to form anions, they are typically named with an -ide suffix.Explanation:hope it's helpful

25.

A salt which shows a sharp break in its solubility at 36oC and becomes anhydrous.a. KNO3b. NaClc. Na2SO4. 10H2Od. CaSO4​

Answer» TION:OPTION BNaCI HOPE this will HELP you
26.

The absolute mass of an electron is (1) 9.11 x 10-²⁸ kg(2)1.11 x 10-²⁸ kg(3)9.11 x 10-³¹ kg(4)1.11×10-³¹ kg​

Answer»

9.11 ×10 POWER -31 KG this is the ANSWERR

27.

E. Calculate the following: - 2. A round bottom flask contains 200 ml of a gas at 27°C & 70 mm of Hg. Find the final pressurewhen it is transferred in a conical flask of 75 ml capacity at a temperature of 57°C.vars​

Answer»

By the end of this section, you will be able to:Use the ideal gas law to compute gas densities and molar massesPerform stoichiometric CALCULATIONS involving gaseous substancesState Dalton’s law of partial pressures and use it in calculations involving gaseous mixturesThe study of the chemical behavior of gases was part of the basis of perhaps the most FUNDAMENTAL chemical revolution in history. FRENCH nobleman Antoine Lavoisier, widely regarded as the “father of MODERN chemistry,” changed chemistry from a qualitative to a quantitative science through his work with gases. He discovered the law of conservation of matter, discovered the role of oxygen in combustion reactions, determined the composition of air, explained respiration in terms of chemical reactions, and more. He was a casualty of the French Revolution, guillotined in 1794. Of his death, mathematician and astronomer Joseph-Louis Lagrange said, “It took the MOB only a moment to remove his head; a century will not suffice to reproduce

28.

23calculate the mass of 9.099* 10²of Nitrogen atoms.​

Answer»

109.099 this ANSWER is CORRECT

29.

An element/radical which is positively divalent in nature a. Mgb. Lic. Cld. PO4​

Answer»

ent/radical which is POSITIVELY DIVALENT in NATURE is CL

30.

Zinc and dilute sulphuric acid​

Answer»

Zinc is more reactive than HYDROGEN and it displaces hydrogen from DILUTE acids. Zinc reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas is evolved. This is a SINGLE DISPLACEMENT reaction of a non-metal by a metal. ... So, this reaction is a chemical change.

31.

Write daily life applications of milk of Magnesia.​

Answer» USE milk of magnesia as a LAXATIVE to RELIEVE constipation, and to ease indigestion and HEARTBURN. This is because it can reduce the amount of stomach ACID while increasing water in the intestines.Its the answer..
32.

3. Correct and rewrite the given in correct statements - (1x4-4)a) When Chlorine atom donates a unit negative charge, it is called Chloride ion​

Answer» NOWN as chloride ANION..When Chlorine atom donates a UNIT NEGATIVE charge, it is CALLED Chloride anion hope it helps :)
33.

An element is represented by 40X20 answer the following questions what is the mass of 'X' how many neutrons are present in 'X' Give electronic confugaration of 'X' Give number of shells present in an atom of 'X'

Answer»

the DISTANCE SELLING REGULATIONS

34.

Determine Zeff for a 2p electron in O2− and Na+.​

Answer»

sbsbbsnsnsjskaksksjahshs

35.

Write equations for the followingreactionsAluminium oxide and Sodium hydroxide​

Answer»

Al203+NaoH=Al2oH+Nao3

36.

What is present within the nucleus which distinguish atoms of one element from the other element?​

Answer»

The number of protons determines an element's atomic number and is used to DISTINGUISH ONE element from another. The number of neutrons is variable, resulting in ISOTOPES, which are different forms of the same atom that VARY only in the number of neutrons they POSSESS

37.

A 19 What is the value of hot resistance of a bulbrated as 100W/250V? | 100W/250V #tasaranगर्म प्रतिरोध का मान क्या होगा?A 31.25 ohm C 312.50 ohmB 62.50 ohm D 625.00 ohmthere in the third ce​

Answer»

V^2/R , R = V^2/Pfor the buland rated as 100W - 250V the resistance of its filamentR=V^2/P = 250^2/100 =625Ω . make it BRILLIANT ANSWER

38.

Please elders answer it fast​

Answer» ANSWER is OPTION C) 3-bromo 1- chlorocyclohex 1- ENE
39.

Describe how to prepare 500 mL of 1.5 M Na2SO4 solution. Include safety in chem lab.

Answer» 500 mL of 1.5 M Na2SO4 SOLUTION. Include SAFETY in chem LAB
40.

Calculate number of particle from unit cell in bcc​

Answer»

2 ATOMS The body-centered cubic (bcc) has a coordination number of 8 and CONTAINS 2 atoms PER UNIT cell.Explanation:

41.

Anyone answer this question please​

Answer»

d- K20Explanation:PLEASE THANK me and MARK as BRAINLIST

42.

Stereochemistry of alkly halides in SN1 reactions?​

Answer»

Stereochemistry Of The SN1 REACTION: A Mixture of Retention and INVERSION is Observed. If we start with an enantiomerically pure PRODUCT, (that is, ONE enantiomer), these reactions tend to RESULT in a mixture of products where the stereochemistry is the same as the starting material (retention) or opposite (inversion).

43.

Friends please answer my previously asked all questionsof chemistry and English​

Answer»

1=D 2=C3=A4=?5=B6=A7=B8=A9=A10=D

44.

Name the product formed in rusting ​

Answer»

᭄ꦿ★ANSWER★᭄ꦿ᭄iron oxideRusting, a WELL known example of corrosion, is the breakdown of the metal iron. The reactants of this chemical reaction are iron, water, and OXYGEN, and the PRODUCT is hydrated iron oxide, better known as rust.

45.

An alloy used in electrical fittings​

Answer»

brassExplanation:ELECTRICAL fittings are GENERALLY made of BRASS. Brass is an alloy of copper and zinc.Mark me Brainliest!!

46.

What will be the effective nuclear charge for the 2p electron of Mg atom. (Atomic number of Mg is 12)​

Answer»

the 1s electrons SHIELD the other 2p ELECTRON to 0.85 "CHARGES". the 2s and 2p electrons shield the other 2p electron equally at 0.35 "charges".Explanation:

47.

Which gas is liberated when aluminium metal reacts ith dilute hydrochloric acid​ hmz-juxz-ywg

Answer»

um REACTS with dilute hydrochloric acid at room temperature. The METAL dissolves in hydrochloric acid, yielding aluminium chloride and colourless hydrogen GAS. This reaction is irreversible, as the final PRODUCTS will not react with each other.

48.

•. When copper ore is mixed with silica in a reverberatory furnace, copper matte producedis?(1) Sulphides of copper (II) and iron (II)(2) Sulphides of copper (II) and iron (III)(3) Sulphides of copper (I) and iron (II)(4) Sulphides of copper (I) and iron (III)​

Answer»

(I) When copper ore is MIXED with silica, in a reverberatory FURNACE copper matte is produced. The copper matte contains sulphides of copper (II) and iron (II).Explanation:hope it helps...mark as brainliest

49.

State and proove triangle law of vector addition hlp me plsss guysss ​

Answer» E law of vector addition states that when two VECTORS are represented as two sides of the triangle with the order of magnitude and direction, then the third SIDE of the triangle represents the magnitude and direction of the resultant vector.
50.

Why is mentanil yellow mixed with pigeon pea ?​

Answer» YELLOW is used in pigeon pea for the process of adulteration, in order to ADD colours. The PRESENCE of metanil yellow is tested with the help of concentrated hydrochloric acid( CONC. HCl).