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.

What will happen to utensils of brass if we rub some lemon on it?

Answer»

It will SHINES when we RUB LEMONS on UNTENSILS

2.

What will be the physical state of water at 0 degree celsious?

Answer»

Good morning,,,,,,,
0 degree Celsius is the freezing POINT of water .But actually it remains in liquid state at this TEMP. So water can be in solid or liquid state .It depends on the conditions which are given to them. As,, if the latent heat of fusion is taken out from it then it will convert into solid state i.e. ICE and if we drop the PRESSURE below 613.28 N/m^2 then it will get convert into vapour state...

So it depends on the physical condition that are provided to them...


I hope this will HELP you!!!!!!!!
plz mark me as brainliest☺☺☺☺

3.

What is weight of ferrous ammonium sulphate crystal when 10gm ferrous sulphate and 5gm ammonium sulphate?

Answer» ACCORDING T0 mass CONSERVATION its weight is 15 GRAM
4.

How to find formula of given compound if valence or electronic configuration is given?

Answer»

U have to write the valency of ELEMENTS below them and by criss cross method u can find the formula of compound.

for EXAMPLE - to find formula of MAGNESIUM chloride.

valency of magnesium is +2 and valency of chlorine is -1

so we will write their valence below them

Mg Cl
2 1

so by criss cross method its formula will be MgCl2.

hope it helps you

5.

6.if 2 liter of water is evaporated on boiling from 8 liter of sugar solution containing 5% sugar find the percentage of sugar in the remaining solution?

Answer»

The PERCENTAGE of SUGER REMAINING in the SOLUTION is 6.6%

6.

What is role of starch indicator in iodometric titration?

Answer»

Starch is used in CHEMISTRY as an indicator for redox TITRATIONS where triiodide is PRESENT. Starch forms a very dark blue-black complex with triiodide which can be made by MIXING iodine with iodide (often from potassium iodide). However, the complex is not formed if only iodine or only iodide (I−) is present.

7.

What is an activity to prove matter is made up of particles?

Answer»

The ACTIVITY to PROVE matter is made up of PARTICLE : the level of water in the beaker REMAIN the same. these particle are so SMALL that we can not see our naked eye . hence it concluded that matter is made up of particle

8.

Solution of 7.8g common salt is dissolved in a solution of 30g AgNO3. How much silver chloride will be formed and what will be the mass of residue.

Answer»

HENCE RESIDUE will be 7.34g and AGCL FORMED 19.13g

9.

Calculate mass of 1atom of c12

Answer»

It will HELP you.....

10.

Which polymers prepared by condensation polymerization?

Answer»

Polyacetals, POLYAMIDES and PROTEINS.

11.

Volume of gas in discharged tube is 1.12*10^-7 ml. At STP then number of molecules of gas in tube is

Answer»

HENCE the no of MOLECULES will be 3.0×10^12

12.

Wgy mercury level rise when bulb comes in contact with hot water

Answer» MERCURY is a METAL which EXPANDS on HEATING
13.

Calculate the no of molecules of water of crystallisation in borax 0.75g of this substance when dissolved in water requires 34.1ml of 1.15/10N H2SO4 for neutralisation.

Answer»

HENCE no of WATER MOLECULES will be 10

14.

What happens to the melting point of ice when increase in pressure?

Answer»

When the MELTING point of the ICE is increasing PRESSURE the ice melts faster because of the room TEMPERATURE

15.

To a sugar solution of 6 l containing 25% sugar, 2l of water is added. the percentage of sugar in the new solution is

Answer»

The PERCENTAGE of SUGER in NEW SOLUTION is 18.75

16.

Paramagnetism is exhibited by

Answer»

Paramagnetism is exhibited by MOLECULES which
A are not attracted by magnetic field
B CONTAIN only paired electrons
C contain unpaired electrons
D carry positive CHARGE

17.

What is the total mass of electrons in 18 mL of water(density =1g mL^-1 Please tell me the answer

Answer»

No of E- = 6.023 × 10 × 10^23 = 6.023 × 10^24

18.

Though mercury is a poor conductor of heat why mercury used in thermometer

Answer»

It has HIGH COEFFICIENT of EXPANSION ,as it is in LIQUID STATE

19.

a shiny silver article generally turn black when kept in open for a few days. the article when rubbed with toothpaste again start shining.name the phenomenon involved. name the black substance formed and give its chemical formula

Answer» PHENOMENON is rusting.
Black SUBSTANCE formed is rust of silver.
Chemical formula is written above.
20.

Select odd one out from nacl,hcl,mgcl2,bacl2

Answer» HCL is your ANSWER BROTHER
21.

If 100 ml of 1N H2so4 is mixed with 100 ml of 1M naoh solution. The result solution will be

Answer»

Answer:

Write WORD equations for two CHEMICAL reactions with the help of materials given in the box.

Air, COPPER SULPHATE, iron, vinegar, iron oxide, carbon dioxide, iron sulphate, copper, lime water, water

Explanation:

22.

why does pink colour appear on gradully adding sodium hydroxide to a solution of acid having phenolphthalien

Answer»

BECUASE sodium hydroxide is a BASE so phenopthalin TURNS pink.

23.

The ligand N(CH2 CH2 NH2)3 IS

Answer»

The LIGAND is ETHYL AMINE

24.

Number of possible orbitals (all types) in n=3 energy level is:- (1) 1 (2) 3 (3) 4 (4) 9

Answer»

the no.of ORBITALS in an ENERGY LEVEL is n8n=3*3=9

25.

During a chemical change,energy is either evolved or absorbed. In which form is this energy seen?

Answer»

TYPICALLY, the energy is released or absorbed as heat, THOUGH in some instances, energy can be EVOLVED as LIGHT or sound.

26.

Mass of 2.6gram molecules ofso2

Answer» HEYA ANSWER is here.....


◇given mass/molar mass=mole
2.6/32+16*2=0.040625
27.

A stove consumes 1 gram of kerosene in 48 seconds. if the calorific value of kerosene is 48 KJ / gm, then the power of consumption of the stove in kW is

Answer»

48 KJ / GRAM * 1 gram / 48 seconds = 1 kJ / SECOND = 1 kW.

28.

What happened to co2gas at high pressure

Answer»

I'm not SURE ANYTHING would happen, unless you MEAN pressures so high that the bonds get compressed. Then, I don't know.

29.

Classify elements or compounds iron,copper,silver,calcium carbonate, nacl

Answer»

Hey mate there is your answer :
Iron: ELEMENT
Copper : element
Silver: element
Calcium carbonate : COMPOUND
Common salt (NaCl) : compound

PLS mark as BRAINLIEST

30.

How manygrams of h2s are can how many grams of H2S are contained in 0.40 moles of H2S

Answer»

Oxygen is more polar than Sulfur. Therefore, the HYDROGEN Oxygen bond is more polar than the Hydrogen Sulfur bond. H20 has stronger intermoleculardipole--DIPOLE INTERACTION because of the greater polarity (or a hydrogen bond). ... But in H2S the bond angle is around 92 DEGREES.

31.

How bromoethane is prepared from ethane and ethene

Answer» REACTION of Ethane with CL2 in presence of Sunlight to give ChloroEthaneReaction of ChloroEthane with Aq KOH to give EthanolReaction of Ethanol with K2Cr2O7 or other oxidising AGENTS to give Ethanoic AcidReaction of Ethanoic Acid with Cao/NaOH (SODALIME) to give MethaneReation of Methane with Br2 (in sunlight) to give BROMOMETHANE
32.

How much water should we mixed with 12 m

Answer» COMPLETE the QUESTIONNAIRE
33.

How this equation came give me result fast

Answer» INCOMPLETE qwestion BHAIYA
34.

Which are more energenic solid or liquid explain

Answer»

Solids are not freely-moving (definite VOLUME), but not necessarily loose either (more definite shape than comparable liquids).
Liquids are not freely-moving (that is, they have a definite volume), but they are FAIRLY loose (an indefinite shape).
HENCE, GASES have more kinetic energy than comparable liquids, and those have more kinetic energy than comparable solids.

I hope help u

35.

Explain about the ph of soil

Answer»

Soils are generally acidic. PLANTS require definite ph range of their proper growth.They do not grow in alkaline soil.Many plants do not grow properly in highly acidic or highly alkaline soil. So, highly acidic soil is treated by spreading quicklime, SLAKED lime or CALCIUM carbonate to lower its acidity.

36.

Does sodium has atomic size greater than that of argon or argon has a larger atomic size than sodium please explain.

Answer»

The atomic size of NA (Sodium is larger than that of Ar (ARGON) because -


As we move from left to right across a period, the NUMBER of electrons in same shells increases.


Similarly, there is an increase in the number of Protons also increases.


Thus the FORCE of attraction between the nucleus and the OUTERMOST shell increases.It leads to a decrease in size.

37.

Jow uh would show with example that metal oxides are badic in nature give chemical equations also

Answer»

HTTPS://www.google.co.in/search?biw=1366&bih=662&tbm=isch&sa=1&ei=P1JPW-u-NJbt9QPZ2LO4CA&q=images+of+good+morning&oq=+images&gs_l=img.1.5.0i67k1j0l9.128139.128139.0.132120.1.1.0.0.0.0.94.94.1.1.0....0...1c.1.64.img..0.1.93....0.IOUzoT_NhZM

38.

Write necessary conditions necessary for chromatography

Answer»

Two substances MUST FLOW through the medium at DIFFERENT rates. High performance liquid CHROMATOGRAPHY OPERATES by ...

39.

What do you understand by corrosion? how can it be prevented?

Answer»

corrosion: damage CAUSED to metal, stone, or other materials by corrosion


TURN to non-corrosive metals such as aluminum and stainless STEEL.

KEEP the AREA around the metal surface dry.

Use drying agents and moisture barrier products.

40.

The atom is the basic building block for all matter in the universe. atoms are extremely small and are made up of a few even smaller particles. the basic particles that make up an atom are electrons, protons, and neutrons. atoms fit together with other atoms to make up matter.

Answer»

Yes, atom is building block of MATTER in the whole UNIVERSE. And atom is made up up of three FUNDAMENTAL particles named Electron, Proton and Neutron.
Electron is negatively CHARGED. Proton is positively charged WHEREAS Neutron is neutral.

41.

How many number of sulphur in 8.5gram

Answer»

Here is your answer
1.6×10^23

42.

Ionizing energy for hydrogen atom in the ground state is E. What is ionization energy of Li++ atom in the second excited state?

Answer»

Any odd degree polynomial with real coefficients has at LEAST one real ROOT. In what follows, I ..... Oops - nice answer to the WRONG QUESTION. 1 .... So necessary conditions are.

43.

Sublimation of naphthalene balls is which type of change

Answer»

A PHYSICAL Change, As only State is CHANGED from SOLID to Gas.

44.

Plz solve this .....

Answer» HEY MATE , HERE IS YOUR ANSWER. ✌✌

PLEASE SEE THE ANSWER IN THE REFER ATTACHMENT....

HOPE IT HELPS U.✌
#BE BRAINLY.✌✌
THNK U.❤❤
45.

Write the names of instruments in which magnet is used.

Answer»

Magnet in USED in many INSTRUMENTS that are even used in our DAILY life. some examples are
WASHING MACHINE
motor
refrigerator etc etc

46.

Solubility of benzoic acid in water at room temperature

Answer»

The SOLUBILITY of benzoic acid in water at ROOM TEMP is .03

47.

Sfter putting baking soda and vinigar my driange is mot cleared sny other solution

Answer»

Depends on what's stopping the drain. Ultimately, the solution is to CALL a plumber - UNLESS you're experienced with technical work around the HOUSE, it's really easy to make the problem worse by trying to fix it yourself.

48.

Chasmistry ka physics se kya sambndh hai

Answer» PHYSICS Gk : Heat | ऊष्मा · POLITY QUIZ : Fundamental RIGHTS (मौलिक अधिकार) · दिल्ली सल्तनत · भारत के उद्योग · यूरोपीय कम्पनी ...
49.

Very short answer definition metals and nonmetals

Answer»

Metal: A solid material which is lustrous,HARD,SHINY, malleable,sonorous with GOOD electrical and thermal conductivity.
Non-Metal: A chemical ELEMENT that lack hardness,lustre,sonority (i.e OPPOSITE to metal)

This may help you frnd...

50.

Set of 4 quantum numbers for the valence electron of rubidium

Answer»

the ELECTRONIC CONFIGURATION of RUBIDIUM is [KR] 5s1

n=5 l=0 m=0 ms=-+1/2