Explore topic-wise InterviewSolutions in Current Affairs.

The chemical reaction that takes placein a galvanic CELL is the redox reaction. ONE electrode acts as anode in which oxidation takes place and the other acts as the cathode in which REDUCTION takes place. The best example of agalvanic cell is the Daniell cell.


THIS IS THE CORRECT ANSWER SO MARK BRAINLIEST ✌️

Answer:

Explanation:

Given Molarity = 0.500 M

Volume of the solution = 250 cm³ = 0.250 L

Molarity is defined as the number of moles of SOLUTE present in one Liter of the solution. Mathematically,

Molarity = Number of moles of solute/ Volume of solution (L)

PUTTING NUMERICAL values,

⇒0.5 = Number of moles of solute/0.250

⇒Number of moles of solute = 0.5 x 0.250 = 0. 125 moles

Thus, number of moles of sodium CHLORIDE = 0.125 moles

Mass of sodium chloride = Number of moles x molar mass

                                           = 0.125 x 58.5 G

                                           = 7.1325 g

Vapor-compression REFRIGERATION or vapor-compression refrigeration SYSTEM (VCRS), in which the refrigerant undergoes phase changes, is ONE of the many refrigeration cycles and is the most widely used method for air-conditioning of buildings and automobiles.

The MASS of GAS DISSOLVED in given mass of solvent is SOLUTE

Because nitrogen WANTS less MOISTURE but if it's use for coating then it CAUSES issues

The NUMBER of ELECTRON present in any AMOUNT of water will be EIGHT electrons.

A mole or gram MOLECULAR weight of a chemical is the total atomic weight of 6.023 x 10^23 ATOMS of the chemical.
HOPE IT HELPS YOU MARK ME AS BRAINLEST

BY:-JOGENDRA.FOLLOW ME

Hello Mate

Mg + 2HCL----> MgCl2 + H2

Therefore, if there are 'n' moles of MAGNESIUM then on reaction with acid like HCl will GIVE 'n' moles of dihydrogen gas.
No. of moles = Mass of substance/Molar mass of substance
Therefore, No. of moles of 12 gm of Mg = 1/2 moles.
Now, volume occupied by one mole of dihydrogen gas at STP = 22.4 litres
Therefore, volume occupied by half mole of dihydrogen gas = 11.2 litres

Hope it helps☺!

Hey FRIEND,
Here is your ANSWER:

Calcium hydroxide is USED in whitewashing.
The correct OPTION is D.

Hope it helps u.

A chemical formula TELLS us the number of atoms of each ELEMENT in a compound. It contains the symbols of the atoms of the elements present in the compound as well as how MANY there are for each element in the form of subscripts       The zinc ION has a CHARGE of 2+.The carbonate ion has a charge of 2-.      
                      Zn^2+  X  Co3^2- =  ZnCO3

(1)CH3COOK is the ANSWER

I THINK the ANS is OPTION C I.e. ALKALIES

The ANS is OPTION B I.e. PINK

Mix metals are referred to those metals their chemical property and the metals are mixed example iron oxide MAGNESIUM oxide hydrochloric ACID and many more
if my answer is helpful to you so please consider as brain L i E s t

The ANSWER for your QUESTION is D. BLUE VITROL

Don't KNOW
SAY me what's the QUESTION

Litmus TURNED RED therfore SOIL is acidic.
plants GROW best in neutral soil thrrfore a base must be added i.e. slaked lime (b)

The main difference betweenthe TWO is that with the volumetric method, the titrant is added directly to the sample by a BURETTE. Conversely, with thecoulometric method, the titrant is generated electrochemically in thetitration cell. The coulometricmethod measures WATER levels MUCH lower than the volumetric method.

THANKS!!

Rapid and mild thermal reduction of graphene oxide (GO) to graphene was achieved with the assistance of microwaves in a mixed solution of N, N-dimethylacetamide and WATER (DMAc/H 2 O). The mixed solution WORKS as both a solvent for the produced graphene and a medium to control the temperature of the reactive system up to 165° C. Fourier transform infrared spectrometry, X-ray diffraction, atomic force microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and thermogravimetric ANALYSIS confirmed the formation …

I THINK 4TH that OPTION d CRITIC.

Basic solution c). PLSS if this ANSWER helps you MARK me as branliest for PROOVE i have an eq.
Na2O+H2O→2NaOH

Hey! Here is the your answer
the NUMBER of nearest neighbours of each atom in c. c. p. structure is. 12 actually. cubic close packed structure i.e.c.c.p.i.e.face centred cubic structure i. e. f. c. c.. no. touching atoms in its plane is 4 .,,,, and 4 atoms at the center of ADJACENT faces of its own CELL and 4 atoms at the centre of adjacent faces of NEIGHBOURING cell. .thus total no. of nearest neighbouring atoms SURROUNDING given atom in lattice is 4+4+4=12
this is 100% correct now

Answer:

Here is your answer :

Preparation of Alkyl Halides

•Preparation of alkyl halides from alkenes.

•Preparation of alkyl halides from alcohols.

•Preparation of Alkyl Halides via Free Radical Halogenation.

•Preparation of ARYL halides via ELECTROPHILIC SUBSTITUTION reactions.

•Preparation of aryl halides through Sandmeyer's reaction.

If the ans. is CORRECT!!!

then mark me as the BRAINLIEST!!!

;)

This PROPERTY is CALLED hydration
the ANSWER is B.

C.biomolecular REACTIONS

Principle of ION Exchange Chromatography. IEX chromatography is USED in the separation of charged biomolecules. The CRUDE sample containing charged molecules is used as the LIQUID phase. When it passes through the chromatographic column, molecules BIND to oppositely charged sites in the stationary phase.

So what...............

The acids change BLUE litmus to RED.
And BASE change RED litmus to BLUE .

WE KNOW , HCL is an acid , and sodium hydroxide is base .

so, the answer is (B) change first to red and then to blue .

Hii..

here is your ANSWER. ..


OPTION C .hydrochloric ACID is WEAKEST acid.

becoz it dissociate INCOMPLETELY. .

hope it helps you. ✌

Heyaa...orbitals are. ...
each of the actual or potential patterns of electron density which may be formed in an atom or molecule by ONE or more electrons, and can be represented as a wave function.and hybridisation means
the process of an animal or plant breeding with an individual of ANOTHER SPECIES or VARIETY.. ..hope helps u dear. ..

I THIN it is REVERSE OSMOSIS  

The ANSWER is 33.444

Its NUMERICAL VALUE cannot be CALCULATED from this value

Hyy....
__________
_____________

⭐No DIL HCL cannot be USED in STANDARDIZATION of NAOH solution.
_____
_________
hope it helps✴✴

Opt is d none of them is correct BCZ HCl turns BLUE LITMUS RED and NaOH turns red litmus blue

The ANSWER is OPTION - ( D) All the above are CORRECT .

A) NEUTRALIZE WASTE before DISPOSAL