Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

OXIDATION REACTION is a

reaction in which H2 RELEASE but in oxidation o2release

Answer:

VINEGAR commonly called Sirka is a dilute solution of ACETIC acid. The PRESENCE of COLOURING matter gives it a greyish colour while the presence of some other organic ACIDS and organic compounds impart it the usual taste and flavour.

Explanation:

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Answer:

it is used to MAKE many things

1=car part, bath TAP, KITCHEN gas burner, bicycle HANDLEBAR, wheel rims and many other .

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EXPLANATION:

this will be the SOLUTION FR this QUES

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ɪ ʜᴏᴘᴇ ɪᴛs ʜᴇʟᴘ ᴜ ❣❣

Answer:

the acid PRESENT in FRUIT LACTIC acid and malic acid and CITRIC acid

ANSWER:

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Explanation:

Gold is used to make jewelry because of the attractiveness of its luster and because of its RARITY. It ALSO doesn't tarnish and doesn't REACT with air the way a metal like IRON does

Answer:

In motion under gravity the horizontal velocity remain constant so only the change in vertical velocity is to be TAKEN into account.

after time t the vertical velocity is v=usinθ−gt

where usinθ is initial vertical velocity so change in velocity is −gt taking modulus it BECOME gt

so change in momentum will be mass multiplied by gt

so answer is mgt means Option C.

ANSWER:

Resultant MOLARITY is 0.280M

Explanation:

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EXPLANATION:

.................................

ANSWER:

SOLID is the answer GROUP 13 ELEMENTS

Density of water 1gm/ml
so 1ml=1gm
mol.mass of water =18 gm
so 1MG = 1/18 MOLE= 3.34 * 10^ 22 molecules
1 ml= 20 drops
1 drop= 1.67*10^21 molecules

Answer:

340......

@USER DIED........

Answer:

Van DER Waals Forces are the WEAK forces which CONTRIBUTE to INTERMOLECULAR bonding between molecules. ... Examples of van der Waals forces include hydrogen bonding, dispersion forces, and dipole-dipole interactions.

Explanation:

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Answer:

Convection is the movement of a fluid, typically in response to HEAT. Advection is the movement of some MATERIAL dissolved or suspended in the fluid. So if you have pure WATER and you heat it you will get convection of the water. You can't have advection because there is nothing dissolved or suspended in the fluid to advect. If you have silt suspended in the water and heat it then you will get convection of the water and advection of the silt.

Convection always transfers heat in the vertical plane while Advection heat transfer DIFFERS from convection in that the movement of heat is confined to the HORIZONTAL plane.

Answer:

hello mate this is ur answer

Explanation:

ur RIGHT answer is OPTION d).

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THANK you ......

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EXPLANATION:

I THINK this will SOLVE your doubt.

All the best

good LUCK

in isothermal, temp is constant

in ISOBARIC, PRESSURE is constant

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Answer: hi mate here is UR answer

there is no difference between the two FLASKS they are the same.

the conical FLASK or  the erlenmeyer flask  have a narrow neck over a cylindrical base and are USED for TITRATION process..

hope it helps!!!

Explanation:

Pyridinium chlorochromate is a yellow-orange salt with the FORMULA [C₅H₅NH]⁺[CrO₃Cl]⁻. It is a reagent in organic synthesis USED PRIMARILY for oxidation of ALCOHOLS to form carbonyls. A variety of related compounds are KNOWN with similar reactivity

Formula: C5H5NHClCrO3

Answer:

1mole ........22.4 L

1/22.4........5.6L

1×5.6/22.4mole =2.46 mole

mole= wt./M

M=2.46×8=19.79

V.D. =M/2

=19.79/2=9.86

ANSWER:

FALSE is your answer MATE COZ they are NATURALLY occuring

Explanation:

EXPLANATION:

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ANSWER:

H2O2

Explanation:

H = 1

O = 16

H2 = 2

O2= 32

total wt. = 34

NA2CO3 + CACL2 ---------> NACL + CACO3

Answer:

when METAL OXIDE reacts with acid it GIVES Salt and WATER

The LAW of conservation of matter SAYS that matter cannot be created or DESTROYED. In chemical equations, the number of atoms of each ELEMENT in the reactants must be the same as the number of atoms of each element in the products. ... There are two oxygen atoms in the reactants and two atoms of oxygen in the PRODUCT.

ANSWER:

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ANSWER:

SEARCH on the GOOGLE I haven't LEARNED this YET

Answer:

I can't understand the QUESTION because of no VALUE SORRY

ANSWER:

HYDROGEN GAS and NC.....

Answer:

4.8×107C/kg

Explanation:

For ELECTRON

CHARGE on an electron =1.6022×10−19coulombs

mass of an electron =9.109×10−31g

So charge to mass raio will be =1.6022×10−19C/9.109×9.109×10−31kg

=1.78×1011C/kg

For ALPHA particle

charge = 2 PROTONS =2×1.6022×10−19coulombs

mass = mass of 2 protons + mass of 2 neutrons

=4×1.672×10−27kg

The charge of mass ratio e/m =2×1.6022×10−19C/(4×1.672×10−27kg=4.8×107C/kg

Answer:

ATOMICITY is the total number of ATOMS present in ONE molecule of an ELEMENT, compound or a SUBSTANCE.

For example, in o3, there are 3 atoms of oxygen.

Answer

amplitude

Explanation:

WAVE number=1

frequency=1/2

Answer:

A colloidal is a mixture where very SMALL particles of one SUBSTANCE are evenly distributed through out another substances. Milk is a mixture of liquid butterfat globules dispersed and suspended in water. Colloids are GENERALLY CONSIDERED as heterogenous mixture but have some quality of homogenous mixture as well.

Answer:

Q2 Balance the following chemical equation and identify the reactants and products.

a. _____ Zn (s) + _____ AgNO3 (aq) → _____ Zn(NO3)2 (aq) + _____ Ag (s)

B. _____ N2 (g) + _____ H2 (g) → _____ NH3 (g)

c. _____ Mg(OH)2 (aq) + _____ H3PO4 (aq) → _____ H2O (l) + _____ Mg3(PO4)2(aq)

d. _____ HNO3 (aq) + _____ Ni (s) → _____ Ni(NO3)2 (aq) + _____ H2 (g)

e. _____ Ba(HCO3)2 (s) → _____ BACO3 (s) + _____ H2O (g) + _____ CO2 (g)

f. _____ BaCl2 (aq) + _____ Na2SO4 (aq) → _____ NaCl (aq) + _____ BaSO4 (s)

g. _____ Al2(CO3)3 (s) → _____ Al2O3 (s) + _____ CO2 (g)

h. _____ Ca (s) + _____ H2O (l) → _____ Ca(OH)2 (aq) + _____ H2 (g)

i. _____ LiHCO3 (s) → _____ Li2CO3 (s) + _____ H2O (g) + _____ CO2 (g)

j. _____ N2 (g) + _____ O2 (g) → _____ N2O5 (g)

k. _____ MgBr2 (aq) + _____ KOH (aq) → _____ KBr (aq) + _____ Mg(OH)2 (s)

l. _____ Mn (s) + _____ CuCl (aq) → _____ Cu (s) + _____ MnCl2 (s)

m. _____ Zn (s) + _____ S8 (s) → _____ ZnS (s)

ANSWER:

It is a PHYSICAL CHANGE

Explanation:

Using the VSEPR theory, the electron bond pairs and lone pairs on the CENTER ATOM will help us predict the shape of a molecule. The shape of a molecule is DETERMINED by the location of the nuclei and its electrons. The electrons and the nuclei settle into positions that MINIMIZE repulsion and maximize attraction.

Explanation:

2Fe + 3CL2 ----------> 2FECL3

ANSWER:

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ANSWER:

MgO2 is the FORMULA of MAGNESIUM PER OXIDE

ANSWER:

chemical REACTION MEANS the reactantparticipated product is FORMED this is called chemical reaction

Answer:

Drawbacks of RUTHERFORD's model of atom. Rutherford PROPOSED that electrons revolve at a high speed in CIRCULAR ORBITS around the positively charged nucleus. When a charged particle i. e. ELECTRON revolves around positively charge nucleus, it needs to be accelerated so as to keep it moving in circular orbits

Answer:

For example, DDT, BHC, zinc phosphide, MERCURIC CHLORIDE, dinitrophenol, etc. All pesticides are poisonous chemicals and are used in SMALL quantities with care. Pesticides are proven to be effective against variety of insects, weeds and fungi and are respectively called insecticides, HERBICIDES and fungicides.

Explanation:

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Answer:

A GIVEN solution of an acid is diluted by adding more water. THUS, the overall volume of the solution increases. However, the number of hydrogen IONS in solution remain the same. Therefore, the number of hydrogen ions per unit volume DECREASES and hence the CONCENTRATION of hydrogen ions decreases.

Answer:

Acids do not SHOW acidic behaviour in the absence of water because the dissociation of hydrogen ions from an acid occurs in the presence of water only. It is the hydrogen ions that are responsible for the acidic behaviour. ... As it CHANGES to CURD, the pH will REDUCE because curd is acidic in nature.

Answer: The AMOUNT of oxalic acid REQUIRED to OBTAIN 250 ml of semi molar solution is 11.25 GRAMS.

Answer:

trans - 1,2 - dibromoethylene

Explanation:

The dipole moment vectors between C and Br in trans structures face in OPPOSITE directions and thus cancel each other.

ANSWER:

Oxalic acid is an organic COMPOUND with the FORMULA C₂H₂O₄. It is a colorless crystalline SOLID that forms a colorless SOLUTION in water. Its condensed formula is HOOCCOOH, reflecting its classification as the simplest dicarboxylic acid. Its acid strength is much greater than that of acetic acid.

Explanation: