Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

ADSORPTION is the PROCESS of adhesion of molecules of LIQUID or gases onto the surface of a solid particle. Absorption is a bulk phenomenon where molecules of absorbate enter into the absorbent. Adsorption is a surface phenomenon where the molecules simply ATTACH to the surface of the adsorbent.

ANSWER:

TURMERIC is CORRECT answer PLEASE FOLLOW me

Answer:

1 Matter

2 Solid

3 Cohesion

4 INTER MOLECULAR space

5 Density

ANSWER:

1)a MARK SIGN

........

Answer:

When LIGHT is passed through water containing a few DROPS of milk, it shows a BLUISH TINGE. This is due to the scattering of light by milk and the phenomenon is called TYNDALL effect.29 अग॰ 2019

EXPLANATION:

combustible-BURNS COMPLETELY in PRESENCE of oxygen

NON combustible-never burns completely in absence of oxygen

Answer:

answer is 21 ltr

step-by-step EXPLANATION:

let a=7x

b=5x

so, the mixture is 7x+5x=12x

when, 9 LTRS DRAINED then

12x-9

then the can is filled with b(9x)

so, atq

12x-9=9x

12x-9x=9

3x=9

x=3

so, a present initially =7*3=21

the answer is 21 litre.

Answer:

If FeCl3 is added to excess of HOT water, a postively CHARGED SOL of hydrated ferric oxide is FORMED due to adsorption of Fe3+ ions. However, when ferric chloride is added to NaOH, a negatively charged sol is obtained with adsorption of OH- ions.

Explanation:

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ANSWER:

USING s=ut+a/2 x t^2

and v=u+at

90=0+a x 2

=> a=45km/minute^2

s=0+45/2 x 4

=> s= 90km

Answer:

A line on a CHART representing changes of volume or PRESSURE under CONDITION of constant TEMPERATURE

ANSWER:

it is FULLY ORGANIC CHEMISTRY so its IMP

ANSWER:

don't KNOWS ignoredignored

Answer:

PROCEDURE:

• Take a PIECE of magnesium ribbon and rub it with  sand PAPER to remove dirt from its surface.

• Hold the magnesium ribbon with the help of a pair of tongs, light the magnesium and collect the ash of BURNT ribbon in a china dish.

• Take a moist red litmus paper and bring it in contact with the white ash of MgO.

Answer:

ion is a charged PARTICLE IONS are diffrentiated into ANION and cation they are formed by VALENCY

ANSWER:

answer is B because MILK is hetrogenous

Air is a mixture of many gases. It is called a mixture because its COMPONENTS can be extracted through PHYSICAL PROCESSES which is a CHARACTERISTIC of mixtures. So Air is a Mixture.

Answer:

teterahedral structure and their individual BONDS CANCEL & these molecule have ZERO dipole moment.

On the other hand, SF

4

has an unbalanced see-saw structure and has a non-zero dipole moment.

Answer:

a LINE on a WHETHER map that JONES PLACES that have a same TEMPERATURE at a particular time

ANSWER:

because GASES SUBSTANCES are LONG LASTING

ANSWER:

True

Explanation:

The METHOD which is used to measure the osmotic PRESSURE of a SOLUTION QUICKLY and accurately is called as Berkeley-Hartley's Method.

Explanation:

Reaction with water: SODIUM OXIDE reacts exothermically with cold water to produce sodium hydroxide SOLUTION. A concentrated solution of sodium oxide in water will have PH 14. ... For example, it reacts with dilute HYDROCHLORIC acid to produce sodium chloride solution.

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Answer:

Electron charge, (symbol e), fundamental PHYSICAL constant expressing the NATURALLY occurring unit of electric charge, EQUAL to 1.602176634 × 10−19 COULOMB.

Explanation:

GIVEN -

• Assertion and Reason

To Find :-

• Which Option is correct ?

For checking which option is correct, we need to solve both Assertion and Reason.

At first,

Assertion :-

Helium has 2 VALENCE electrons and its VALENCY is 0.

Assertion is correct because He has 2 valence electrons and it's Valency is 0.

Now,

Reason :-

Helium is the most abundant element in universe.

Reason is incorrect because H is most abundant element not He.

HENCE,

Assertion is correct and Reason is wrong

Therefore,

Option C is correct.

ANSWER:

NON METAL.......

Explanation:

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ANSWER:

a) DIAMOND ............

Answer:

The ELEMENT BELONGS to THIRD period and group 1 is SODIUM (Na)

QUANTITATIVELY, ozone can be ESTIMATED with the help of potassium iodide. When ozone is made to react with potassium iodide solution buffered with a borate buffer (pH 9.2), IODINE is LIBERATED. This liberated iodine can be titrated against a standard solution of sodium thiosulphate using starch as an indicator

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EXPLANATION:

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ANSWER:

I can't UNDERSTAND PLEASE

ANSWER:

Only 1 is the correct answer. I think it is correct.

Explanation:

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ANSWER:

combination REACTIONS are the reaction in which two or more substances COMBINED to form a single substance

A+B= AB

Answer:

SI UNIT of dipole MOMENT is DYNE and it is REPRESENTED by the symbol D

ANSWER:

I hope this answer is HELP full U

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Answer:

Liquid- molecules are LOOSELY packed as COMPARED to that of a solid. they take the shape of a container.

Gas- molecules of gases are further apart when compared to liquid molecules.

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Answer:

Gypsum is a SOFT sulphate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSo₄.2H₂O.

When gypsum is heated at 373 K Plaster of Paris (P.O.P) is formed. This is used in building materials and construction projects work.

Heating BEYOND 180 DEGREE Celsius it gives a product called gamma ANHYDRITE. The widespread, singular use of gamma ray - neutron surveys has resulted in general misconception regarding the occurrence of porosity … Anhydrite and gypsum may produce porosity errors when average velocity or density information is used with the sonic or density logs.

Beyond 250 degree Celsius it produces beta anhydrite … A structural model for beta-CaSO4 center dot 0.5H(2)O is proposed on the basis of SR-PXD data and a trigonal unit cell (in … setting) a = 6.93145(3), c = 12.736 17(4) angstrom, Z = 6, and space group P3(1). A structural model for soluble anhydrite. This beta anhydrite doesn't react with water, it helps in MAKING gypsum an oxidizing agent at high temperature

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Answer:

can't UNDERSTAND your QUESTION

Explanation:

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ANSWER:

CHLORINE is USE to PURIFY WATER

COLUMB METER................

EXPLANATION:

USE,

E=hc/λ

λ=250×10

−9

m

E=6.6×10

−34

×3×10

8

/(250×10

−9

)J=7.95×10

−19

J.

ANSWER:

YES it is an ENDOTHERMIC reaction becuse in these CHEMICAL reaction HEAT is produced

Answer:

The distillation process removes most impurities, so it is an EFFECTIVE method of water treatment. hope this HELPS. DISTILLED water is NEUTRAL in nature.

Answer:

The first three MODES (T 1u ) in DESCENDING order of normal FREQUENCIES are the translational modes of the center of mass of the HCl MOLECULE. The next normal mode (A G ) corresponds to the totally symmetric breathing of the cage

ANSWER:

NAHCO3 is HEATED then NAO ,WATER ,CARBON DIOXIDE IS RELRASED

Answer:

PVC pipes are manufactured by extrusion of raw material PVC, and generally follow the same steps of typical pipe extrusion operations: Feeding of raw material pellets / powder into the PVC twin screw extruder. Melting and heating in multiple extruder zones. Extruding through a die to shape into a pipe.

Most manufacturing environments fit into one of five general CATEGORIES: Repetitive, Discrete, JOB Shop, Process (batch), and Process (continuous). In the diagram below, each letter represents a different PRODUCT. "White space" indicates set-up, tear-down, or a changeover activity of some type.

Explanation:

Manufacturing Process

Plastic extrusion: Plastic is heated and pushed through a heated chamber by a screw. Molding: Plastic is FORCED through a die that creates the final shape of the part. Cooling: The extruded plastic is COOLED. Cut or spool: The continuous shape is spooled or cut into lengths.

ANSWER:

smoke is an example of FOG please mark me has BRAINLIEST answer

Answer:

(b)

Explanation:

As we know GREATER the VALUE of van't Hoff factor higher will be the ELEVATION in boiling point and HENCE higher will be the boiling point of solution. Hence, 1.0 M Na2St4 has HIGHEST value of boiling point.

Explanation:

Each acid can form as many kinds of salts, as it has hydrogen ion .

Sulphuric acid can form TWO kinds of salts, i.e. ,

SO4²- and HSO4- . It ionizes in WATER to form two hydrogen ions. HENCE, it is said to be DIBASIC.

Answer:

Explanation:

concept : In group , OXIDIZING power { means tendency to GAIN electron } decreases from top to BOTTOM as the size increases .

But in period , oxidizing power increases when we move left to right because size decreases.

Here, F, Cl, O, N are given .

Oxygen is more electronegative than Cl , hence, O is stronger oxidizing agent than Cl. Also F is the best electronegative element.hence, it is the best oxidizing agent.

Hence, order of oxidizing agents is F > O > Cl > N

ANSWER:

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<P>Explanation:

According to HENRY's law, P=K

H

×x

∴x

O

2

=

K

H

P

O

2

=

4.34×10

4

0.2

=4.6×10

−6

Moles of water=

18

1000

=55.5mol

∴x

O

2

=

N

H

2

O

+n

O

2

n

O

2

≈

n

H

2

O

n

O

2

⇒n

O

2

=4.6×10

−6

×55.5=2.55×10

−4

mole

∴ Molarity = 2.55×10

−4

M