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.

Drugs which act on cnsand helps in reducing anxiety are called antibiotics

Answer»

ANSWER:

YES U are ABSOLUTELY RIGHT

2.

Represent ​under-root 9 on the no line​

Answer»

Answer:

HOPE it helps please

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3.

Nuts can be classified as high fat ,high protein,and carbohydrate ​

Answer»

Answer:

Nuts and seeds are a heart-healthy snack. Almonds, in particular, have been proven to lower cholesterol. In addition to being a GOOD source of fiber and fats, nuts can also be a good source of protein.

The current Daily Value (%DV) for protein is 50 grams per day. One ounce (1oz) of nuts or seeds is typically equivalent to a handful, or 2-3 TABLESPOONS. Most nuts provide between 8-18% DV of protein per 1oz handful.

High protein nuts and seeds include hemp seeds, pumpkin seeds, PEANUTS, almonds, pistachios, sunflower seeds, FLAX seeds, sesame seeds, chia seeds, cashews, and more. Below is a list of 16 nuts and seeds high in protein, for more, see the extended list of less common nuts and seeds high in protein.

4.

Mention a few problems associatedwith synthetic materials​

Answer»

Answer:

Excessive use of synthetic materials CAUSES damage to the environment. Example: Plastic does not burn completely and releases smoke which causes air pollution. ... The use of synthetic materials also clogs and BLOCKS the drains which may result in ACCUMULATION of rain water as well as dirty water.

There is a disadvantage with synthetic fibers that synthetic fibers melt on heating. If the cloth catches fire it can be very disastrous. The fabric melts and sticks to the body of the person wearing it. It is therefore ADVISED not to wear synthetic clothes while working in a laboratory or working with fire in the kitchen

Hope it HELPS you.

5.

5 milligram NaCl per litre is

Answer»

Answer:

58 grams

Explanation:

6.

The diagram shows a method for separating a substance that contains X and Y. Which types of substance can be separated as shown?

Answer»

you haven't GIVEN any DIAGRAM I'm UNABLE to ANSWER

7.

Is carbon oxidizing or reducing agent

Answer»

ANSWER:

It is a reducing agent

EXPLANATION:

CARBON atom increases its oxidation number from +2 to +4, so each carbon atom in CO(G) is oxidized, and CO(g) is the reducing agent.

8.

Calculate the weight 12.088 atoms carbon?

Answer»

Answer:

To FIND the average ATOMIC mass, you take a certain number of atoms, find the total mass of each isotope, and then divide the total mass of all the atoms by the total number of atoms. Assume that you have, say, 10 000 atoms of carbon. Then you have 9893 atoms of 12C and 107 atoms of 13C

Explanation:

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9.

Why copper does not Rea t with hydroric acid

Answer»

Explanation:

Copper is a very UNREACTIVE METAL, and it does not react with HYDROCHLORIC acid.

HOPE THIS HELPS

10.

Explain what happens when an electric current is passed through a solution of aqueous silver trioxonitrate(v)

Answer»

Explanation:

Faraday's second law of electrolysis states that, when the same quantity of electricity is passed through SEVERAL electrolytes, the MASS of the substances deposited are proportional to their RESPECTIVE chemical equivalent or equivalent weight.

We know that,

Equivalent weight of Ag =

1

108

=108

Equivalent weight of CU =

2

63.5

=31.75

Now as per Faraday's second law,

Eq.wt.ofCu

Eq.wt.ofAg

=

MassofCu deposited

MassofAg deposited

31.75

108

=

W

15.28

⟹W=

108

15.28×31.75

=4.49g

11.

An electron in a Hylike atoms is an excited state it has a total energy of -3.4 evening calculate the de broglie s wavelength ​

Answer»

ANSWER:

-13.6

Explanation:

Is it CORRECT PLZ TELL me

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12.

....... What is shielding effect??....​

Answer»

Answer:

The SHIELDING EFFECT sometimes REFERRED to as ATOMIC shielding or electron shielding describes the attraction between an electron and the nucleus in any atom with more than one electron.

Hope it helps you.

13.

An organic compound contains carbon 80% and hydrogen 20%. If molecular mass is 30. calculate molecular formula.​

Answer»

C= 80/12 = 6.6/6.6= 1

H = 20/1= 20/6.6= 3

empirical FORMULA= CH3

n= 30/15

n= 2

molecular formula= C2H6

14.

Why is table salt called table salt?

Answer»

ANSWER:

what an IRRELEVENT QUESTION is it.........

EXPLANATION:

15.

How the alloys prevent rusting​

Answer»

Answer:

Using Alloying to Prevent Corrosion

We've SEEN that alloys can be created to increase a metal's resistance to corrosion. The traditional METHOD used to prevent corrosion was to COVER the metal with a SURFACE COATING, such as polymer. This creates a barrier between the surface of the metal and the elements

Explanation:

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16.

What do we observe from the activity 1.4 of class 9 science ( I mean which property)​

Answer»

ANSWER:

aasociative

Explanation:

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17.

Plz send me this questions answer ​

Answer»

ANSWER:

SORRY SIS I don't no this answer.

18.

The dash zone of a flame is the hottest

Answer»

the the the ZONE of COMPLETE combustion or non luminous zone is the HOTTEST zone and is faintly visible.

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19.

An organic compound have carbon = 40.6 5%, hydrogen= 8.55%, nitrogen =23 .7%and rest is oxygen .If the vopour density is 29.5 .calculate the molecular formula .​

Answer»

Explanation:

Molecular mass =2×Vapor density=59 g mol

−1

% C=40.65⇒

100

59×40.65

=24 g/moles=

12

24

=2 moles

% H=8.55⇒

100

59×8.55

=5 g/moles=

1

5

=5 moles

% N=23.77⇒

100

59×23.77

=14 g/moles=

14

14

=1 moles

Mass of oxygen =59−43=16 g/moles=1

Molecular FORMULA is C

2

H

5

NO

20.

Hey guys please explain me about three types of covalent bonds in detail​

Answer»

Answer:

Types of COVALENT Bonds

Depending upon the NUMBER of shared ELECTRON pairs, the covalent bond can be classified into: Single Covalent Bond. Double Covalent Bond. TRIPLE Covalent Bond.

Ithink it is helpful to you

21.

N2o is isoelectronic with CO2 and n3-, which is the structure of n2o​

Answer»

ANSWER:

N=N ➔ 0.

Explanation:

N2O is isoelectronic with CO2 and N3. HENCE, its structure is linear

22.

How the oiling prevent rusting​

Answer»

ANSWER:

because oil is heavy than the wate I am sorry I didn't KNOW

23.

Colloidal is a heterogeneous mixture? what is its type? Explain.

Answer»

A colloid is a heterogeneous mixture whose PARTICLE size is intermediate between those of a solution and a suspension. The DISPERSED particles are spread EVENLY throughout the dispersion medium, which can be a SOLID, liquid, or gas.

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24.

Relate absolute temperature scale or Kelvin temperature to Celsius scale​

Answer»

ANSWER:

HELLO FRIEND is correct98

25.

Number of significant Figures in the numer 1.065 (a) 3 (b) 4 (c) 2 (d) 1

Answer»

Answer:

4

Explanation:

1.065

26.

Table of no. of carbon atoms and no. chain isomerism​

Answer»

One CARBON

​  

:− One carbon does not really form chains, So, there is no chain or position isomerism,  

                           CH4

 (methane) has one carbon.

Two carbons

:− Two carbOn form a chain, but there is only one way to form this chain, so no isomerism as WELL.

                           CH3-CH3

 (ethane) has two carbons.

Three carbons

:− One carbon has to be in the MIDDLE and the other two at the ends, so only one possible chain, no isomerism.

                           CH3-CH2-CH3

 (propane) has three carbons.

Four carbons

:− One carbon has to be in the middle, two at the ends, but the fourth carbon could be in the middle (forming isobutane) or at the end (forming n− butane), so there is a chain as well as position isomerism.

See the FIGURE.  

So the minimum numbers of carbon are 4.

27.

Predict the order of reactivity towards E2dehydrohalogenation of the following compounds:ethyl bromide, n-propyl bromide, isobutyl bromide, neopentyl bromide.Justify your answer​

Answer»

Answer: In SN  

2

 REACTION, steric FACTORS determine the reactivity. more reactive alkyl halides have LESS steric hinderance. Hence, the decreasing order of the reactivity of alkyl halides is 1  

o

>2  

o

>3  

o

.

(i)  1-Bromopentane >  2-Bromopentane > 2-Bromo-2-methylbutane

(ii) 1-Bromo-3-methylbutane >  2-Bromo-3-methylbutane >  2-Bromo-2-methylbutane

(iii) 1-Bromobutane >  1-Bromo-3-methylbutane >  1-Bromo-2-methylbutane > 1-Bromo-2, 2-dimethylpropane

28.

Which is the a regenreted fibre​

Answer»

Explanation:

REGENERATED fiber is CREATED by dissolving the CELLULOSE area of PLANT fiber in chemicals and making it into fiber again (by viscose method). Since it consists of cellulose like cotton and hemp, it is also called "regenerated cellulose fiber."

29.

Why decomposition reactions are called opposite of combination reaction

Answer»

Answer: In a combination reaction two or more SUBSTANCES are COMBINED to form new substance while in the decomposition reaction ONE substance decomposes into two or more substances. HENCE, the decomposition reactions are called opposite of combination reactions.

30.

The empherical fotmula of monomer and polymer are same in case of​

Answer»

Answer:

Each COMPOUND has the same empirical formula (CH2) but they have different molecular weights. ... The first EXPLANATION for why polymer molecules are so heavy was offered by Herman Staudinger in 1920. Staudinger argued that polymers CONTAIN long CHAINS of relatively simple repeating units, or monomers.

31.

Method of using a separating funnel

Answer»

Answer:

Explanation:

Methods of SEPARATION of HETEROGENEOUS MIXTURES are:

1. Decanting

2. Filtration

3. CENTRIFUGATION

32.

Chemical equation with 2 reactants which has 4 products ​

Answer»

Answer:

NACL + H20 —> NaOH + HCl

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33.

You have two solutions a and B the pH of solution 11 a is six and pH of solution 11 be is eight which of these do have a higher hydrogen iron concentration? in the above question which one of two solutions a and B is acidic and which one is basic in nature.

Answer»

Answer:

A PH value of less than 7 indicates an ACIDIC solution, while GREATER than 7 indicates a basic solution. Therefore, the solution with pH = 6 is acidic and has more hydrogen ION CONCENTRATION than the solution of pH = 8 which is basic.

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34.

What is precutipate?​

Answer»

Explanation:

Precipitation means something LIKE RAIN,snow,etc...which are falling from the sky.

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35.

What happens if co2 is passed through ammonical brine solution

Answer»

ANSWER:

Carbon DIOXIDE (CO2) reacts with ammonia (NH3) dissolved in brine (concentrated NaCl(aq)) to produce sodium CARBONATE.

36.

Hi guys, please help: What is the relation between Normality and molality?

Answer»

Molarity, molality, and NORMALITY are all units of concentration in chemistry. Molarity ( ) is DEFINED as the number of moles of solute PER liter of solution. Molality ( ) is defined as the number of moles of solute per KILOGRAM of solvent. Normality ( ) is defined as the number of EQUIVALENTS per liter of solution.

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37.

MATCH THE FOLLOWING:-odidation1.-1number of F2.0in NaF3. +1vions having4. cationpositive5. anionchargevions havingnegativecharge isv oxidationnumber ofhydrogen ion​

Answer»

ANSWER:

CLASS..........................

38.

A gas fills completely The vessel in which it is kept​

Answer»

Answer:

it......will.....help....you

Explanation:

So, a gas fills the WHOLE container in which it is KEPT. it is USUALLY kept in an air - tight container and not in an open container. If it is kept in an open container, it will move away , because the particles of a a gas are always MOVING EVERYWHERE with high speed.

39.

Write ec of atomic number 24​

Answer»

Answer:

Electronic configuration of ELEMENT with atomic number 24

Its electronic configuration in GROUND state is 1S2 2s2 2p6 3s2 3p6 4s1 3d5.

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40.

Which type of element is aluminium monoatomic diatomic triatomic or polyatomic???????????​

Answer»

ALUMINIUM is MONOATOMIC.

41.

Potassium iodide has unit cell with edge of 7.5pm. The density of KI is 3.12 g/cm^3. How many potassium and iodide ions are contained in it?(dont spam and please explain well)​

Answer»

Answer:

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42.

Value of nitrogen in Nh3

Answer»

Explanation:

Explanation of the nitrogen, ammonia units NH3-N chemical form

Answer

Ammonia (NH3) and nitrogen, ammonia (NH3-N) are different expressions of the chemical forms of ammonia. The NH3-N form uses the molecular WEIGHT of only the nitrogen atoms. The NH3 form uses the molecular weight of the entire ammonia molecule, 1 nitrogen atom + 3 hydrogen atoms.

The nitrogen-ammonia NH3-N form is common because it relates to other nitrogen COMPOUNDS such as nitrogen, nitrite NO2-N or nitrogen, NITRATE NO3-N.

Provided below is the CONVERSION chart to convert NH3 to NH3-N

NH3 = NH3-N * 1.21589

Assumed atomic WEIGHTS:

H: 1.008, N: 14.007

43.

How is a cation formed? answer​

Answer»

Answer:

Cations form when an ATOM loses one or more electrons. The resulting cation has the electron configuration of the noble GAS atom in the row above it in the PERIODIC table.

Explanation:

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44.

Calculate gram atoms of carbon present in 16 moles of acetylene ​

Answer»

Answer:

16 GRAM ATOM is PRESENT in 16 moles of acetylene

45.

Which of these fuel has the highest calorific value

Answer»

ANSWER:

which FUEL..........

46.

Calculate the molarity of solution containing 0.5g of Naoh dissolved in 500cm³

Answer»

Answer:

Explanation:

1 mol NaOH = atomic MASS of Na + atomic mass of O + atomic mass of H = 23 + 16 + 1 = 40g.

0.5 g NaOH = 0.5 / 40 mol NaOH = 0.0125 mol of NaOH

500 ml of water = 500/1000 = 0.5 L

Now, MOLARITY = NUMBER of MOLES of solute / total VOLUME of the solvent

= 0.0125 / 0.5 = 0.025 mol/L.

thank you

47.

Why does a vegetable stain turn reddish brown when washed with soap solutions

Answer»

Answer:

Cooked vegetables or vegetable curry contain turmeric powder and soap is BASIC in NATURE. Turmeric is a natural indicator which changes its yellow colour into REDDISH brown when it comes in contact with a SOLUTION of base. Hence, when soap (which is basic in nature) is scrubbed on the stain, the stain turns red.

48.

What volume of 0.157M Nitric acid is needed to neutralize a 25ml of 0.1M NaOH?

Answer»

EXPLANATION:

This is a titration curve question. I know that the initial PH of the hydrochloric acid is 1.65. I know that you can FIND the concentration of HCl by plugging it into the pH FORMULA. So,

log

[

H

+

]

=

1.65

10

1.65

=

0.02239

=

[

H

+

]

.

However, that's as far as I've GOTTEN. I know the volume of the 0.1292 M NaOH is between 22 and 23 mL, but I can't seem to figure out how to find the exact value. Any help is greatly appreciated!

49.

When a copper wire was left in nitrate solution for somtime, it was observed that the solution turned blue green. Explain the observation? Write the balance chemical equation to represent the change takes place?

Answer»

ANSWER:

. COPPER IS MORE REACTIVE THAN SILVER. HENCE WHEN COPPER WIRE IS DIPPED IN SILVER NITRATE ( AgNO3 ) SOLUTION FORMING COPPER NITRATE WHICH IS BLUISH GREEN IN COLOUR. THIS IS A DISPLACEMENT REACTION

50.

A solution of glucose is 10 percent .The volume to which 1g mole of it dissolved will be ?

Answer»

EXPLANATION:

An aqueous solution of glucose is 10% in strength ,The volume in which 1G MOLE of it dissolved will be. i.e. 0.1 litre. 0.1×18010=1.8 litre