Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

ELECTRON affinity of HALOGENS is comparatively high, as they have small atomic size and more NUCLEAR charge.

Explanation:

Since Electron Affinity is Directly PROPORTIONAL to Nuclear Charge, as well as  Inversely Proportional to Atomic size.

Answer:

HEY mate here is your answer :)

Terylene is a synthetic polymer Made by the polymerisation of

- Ethylene GLYCOL

- Terphthalic acid

It is prepared by the method of Condensation Polymerisation.

The fibre was first created in 1941 by chemist J R WHINFIELD of Accrington who sold the patent rights to the chemical company ICI. In AMERICA, it is produced as the name “DACRON”

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Answer:

you should simply KNOW that: SP3 hybridisation is shown by ALKANES or single BOND COMPOUNDS, SP2 is shown by alkenes or double bond compounds, SP hybridisation is shown by alkynes or triple bond compounds,

this is enough for 10th class

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ANSWER:

EITHER IONIC or COVALENT bond (CHLORINE)

of ZN in Zn(CH3COO)2·2H2O​ = 65.38219.5 = 0.298 = 29.8%

Answer:

The plasma membrane, ALSO called the cell membrane, is the membrane found in all CELLS that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell WALL is attached to the plasma membrane on its outside surface.

*The plasma membrane regulates what enters and exits the cell.

*It is COMPOSED of a phospholipid bilayer and sometimes covered in cholesterol MOLECULES and proteins.

Explanation:

Explanation:

6). (1) Formula : C5H10

option : 3

7). (1) formula: C4H10

option: 1

ANSWER:

Hey mate here is your answer....

To identify WHETHER the SOLUTION is ACIDIC or basic.

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Ag=107.8.

Is your ANSWER MATE HOPE it HELPS

Answer:

DIE specially in a violent or sudden WAY.

(of RUBBER, FOOD, etc.) lost its normal qualities; and decay.

ANSWER:

1. STAY home
2. Use sanitizer
3. Wash your HANDS in EVERY half an hour.
4. Don't go outside.

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EXPLANATION:

Redox reactions are oxidation-reduction chemical reactions in which the REACTANTS UNDERGO a change in their oxidation STATES. The term 'redox' is a short FORM of reduction-oxidation. All the redox reactions can be broken down into two different processes – a reduction process and an oxidation process.

ANSWER:

SEE FIGURE .....

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Answer:

• The LANTHANIDE or lanthanoid series of CHEMICAL ELEMENTS comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium. These elements, along with the chemically SIMILAR elements scandium and yttrium, are often collectively known as the rare earth elements.

ANSWER:

No. of Neutrons = n - z .

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Explanation:

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Answer:

1.2046 X 10^23. PLS MARK as BRAINLIEST

Answer:

4

Explanation:

SOLN is as GIVEN as in the FIGURE

Answer:

1 PARA MAGNETIC CHARACTER

ANSWER:

you can SOLVE it in calculator

the answer will COME

Answer:

the particles of matter in solid are tightly PACKED so that they cannot move

the particles of matter in LIQUID they are loosely packed so for example when water is POUR in the floor they move from one place to ANOTHER

the particles of matter in gases they are very loosely packed so they can move from one corner of the room to another corner of the room for example perfume

ANSWER:

SORRY i DONT have a answer

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ANSWER:

Since the kinetic energy of a MOLECULE is proportional to its temperature, evaporation proceeds more quickly at higher temperatures. As the faster-moving molecules escape, the remaining molecules have lower AVERAGE kinetic energy, and the temperature of the liquid decreases.

LAYER of PAINT has been APPLIED to it to PREVENT RUSTING

EXPLANATION:

FOOD PACKAGE =NITROGEN

ANSWER:

1-bromo hexane-d13 is the answer

Answer:

HI DEAR ☺

UR ANSWER IS HERE

Limitations of law of definite PROPORTIONS: The law does not hold TRUE if the different isotopes of the element are INVOLVED in making chemical compound. the law is not applicable when ELEMENTS combine in the same ratio but different COMPOUNDS are formed.

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ANSWER:

ISSAC newton has DISCOVERED law of gravity

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ANSWER:

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Answer:

what changes in colour of iron NAILS and copper SULPHATE solutions do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 MINUTES? s, which SAYS that Iron is more REACTIVE than copper, therefore it can displace copper from its salts (here,copper sulphate).

ANSWER:

because they have WEAK BINDING FORCE of ATTRACTION

ANSWER:

When malonic acid is heated, acetic acid and CARBON dioxide is obtained due to THERMAL decarboxylation.

Answer:

• ANTOINE LAVOISIER is known as the father of CHEMISTRY.

Answer:

Any molecule composed of exactly TWO atoms is a diatomic molecule.  Examples include hydrogen chloride, normal OXYGEN (not ozone), and nitrogen.  I would exclude ionic SUBSTANCES such as sodium chloride (table salt), because in the solid STATE, table salt is a massive array of sodium and chloride ions, with no particluar sodium ion assigned to any particular chloride ion........

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EXPLANATION:

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ANSWER:

(B) INFLATING a BALLOON

ANSWER:

Some common examples of monatomic molecules are listed below:

HELIUM ( He)

Neon (Ne)

Argon (Ar)

XENON (XE)

Krypton (Kr)

Radon (RN)

EXPLANATION:

DIFFUSION Definition. Diffusion is a PHYSICAL process that refers to the NET movement of MOLECULES from a region of high concentration to one of lower concentration. ... For instance, a gas diffuses very quickly in another gas. An example of this is the way the noxious smell of ammonia gas spreads in air

ANSWER:

H₂O₂ + 2KI ⇒ 2KOH + I₂

GIVEN:

CH3CH=CHCHO is oxidised to CH3CH=CHCOOH

To find : the SOLUTION

Yes Aldehydes are CONVERTED into Carboxylic Acids by oxidation process .

The  oxidation of aldehydes to carboxylic acids is a two-STEP procedure. In the first step, ONE mol of water is added in the presence of an acidic catalyst to generate a hydrate.

Then in second step the hydrate is oxidized to the carboxylic acid and eliminating water from it as a sub product.

Answer:

1)- When the compounds, reactants , products are written in symbolic form. The shortest way to express CHEMICAL reactions is to make use of the element symbols.

2) Decomposition reaction is the type of reaction in which the reactant give simpler products. In Decomposition reaction a compound breaks down to give two or more simpler substances. In this reaction there is only ONE reactant.

3) A synthesis reaction occurs when two or more reactants combine to form a single product. In a decomposition reaction, one reactant breaks down into two or more products. This is the reverse of a synthesis reaction. Replacement reactions occur when elements switch places in compounds.

4). Double decomposition reaction involves the exchange of partners. Explanation: It is a reaction between two compounds that exchanges the one part of a chemical compound with another part of a chemical compound to form two new chemical compounds.

5). The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.

6). Aqueous (aq.)

(aq.) symbol is used to indicate a solution made in water.

7) On digestion of FOOD the body faces a decomposition reaction, i.e. decomposition of food in our body. Decomposition is nothing but a chemical reaction and breaking down of food into digestible nutrients such as Carbohydrates, proteins, fats which our body required for proper functioning.

9) Silver bromide is a photosensitive compound that decomposes when exposes to sunlight. That is the reason it is always kept in the dark bottles. The reaction of silver chloride with sunlight is also called as photolytic decomposition reaction in which the decomposition reaction carried out by sunlight.

10) The chemical name of substance, which is used for white washing is calcium oxide. Its common name is lime or quick lime. The chemical formula of calcium oxide is CaO. When calcium oxide reacts with water it forms calcium hydroxide.

13). 2Na + 2H2O = 2NaOH + H2.

This is the balanced chemical equation which turns up when the sodium (Na) metal is made to react with water (H2O) to form Sodium Hydroxide Na(OH)2 and Hydrogen H2 Gas. This reaction is highly exothermic, the piece of the sodium melts while the reaction takes place.

14) Aluminum hydroxide is a base as it is hydroxide of metal which are basic in nature whereas sulphuric acid is an acid therefore reaction of acid and base will form salt and water . The reaction is called as neutralization reaction. Here sulphate salt of aluminum is formed with water.  

The reaction is:

2Al(OH)3 + 3H2SO4 →Al2(SO4)3 + 6H2O

15). Ammonia reacts with hydrogen chloride to give white fumes of ammonium chloride. its an acid base reaction. NH3 is a lewis base and HCl is an acid.

16) When a rod of zinc metal is dipped into a solution of copper sulphate then the zinc reacts with it and displaces the copper. its colour will change from Blue to colourless in the meanwhile copper sulphate is blue and Zinc is colourless. Dear friend zinc is more reactive then copper . So it will displace copper.

( 8, 11 12, 17 these questions I'm not able to figure out the answers)

Hope the rest of the answers help u out.

Answer:

1.602× 10^-19 JOULE................I HOPE it will HELP U.....

Explanation:

METALLIC character increases as you move down the periodic table. This is due to the fact that the electrons become easier to lose as the ATOMIC radius increases. The increase in atomic radius decreases ATTRACTION between the POSITIVE nucleus and the negative electrons, causing the electrons to be held more loosely.

Answer:

The 100% RIGHT answer is - atomic number.

Explanation:

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Explanation:

paraffin oil is a COLOURLESS, flammable , oily liquid , and used as a fuel. it is formed by the PRODUCT of petroleum DISTILLATION. it is composed of heavier ALKANES.

structure - Cn H2n+2 where n is no. of carbon atom.

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Explanation:

MATTER can exist in one of three MAIN states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its SHAPE; the particles are not free to move AROUND. Liquid matter is made of more loosely packed particles.