Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

FIND the answer in the ATTACHMENT

Answer:

The most COMMON and ACCURATE pH TECHNIQUE is by electrochemical combination electrode. A combination pH electrode RESPONDS to the hydrogen ion (H+) concentration (activity) by developing an electrical potential across the electrode bulb/water interface. This potential difference is measured with a voltmeter.=

Answer:

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Answer:

Water purification, process by which undesired chemical compounds, organic and inorganic materials, and biological contaminants are removed from water. That process also includes distillation (the conversion of a liquid into vapour to condense it back to liquid form) and deionization (ion removal through the extraction of dissolved salts). ONE major purpose of water purification is to provide clean drinking water. Water purification also meets the NEEDS of medical, pharmacological, chemical, and industrial applications for clean and POTABLE water. The purification procedure reduces the concentration of contaminants such as suspended particles, parasites, bacteria, algae, viruses, and fungi. Water purification takes place on scales from the large (e.g., for an entire city) to the SMALL (e.g., for individual households).

ANSWER:

znfe+cl

Explanation:

EXPLANATION:

No

Clf3 is T SHAPED while Is TRIANGULAR PLANAR

ANSWER:

B is the answer WRITE it

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Answer:

Lead nitrate on heating decomposes to lead monoxide, nitrogen DIOXIDE and oxygen. NO2 is liberated, along with oxygen, as a REDDISH brown gas. ... PBO is lead oxide,nitrogen dioxide[NO2] which appears as brown fumes and oxygen is produced.

Explanation:

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ANSWER:

Decomposition REACTION requiring heat is known as thermal decomposition , CaCO3--------->CaO + CO2. Decomposition reaction requiring light is known as photo CHEMICAL decomposition reaction , 2AgCl-------2Ag + Cl2.

Answer:Zinc sulfate is PRODUCED by treating virtually any zinc-containing material (METAL, minerals, OXIDES) with sulfuric acid.

Explanation:

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ANSWER:

कसब दाखवणे- कौशल्य दाखवणे

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Answer:

Doctors often use them to treat leukemia and cancer in the breasts, ovaries, and intestines. Drugs in this group INCLUDE 5-fluorouracil, 6-mercaptopurine, cytarabine, gemcitabine, and methotrexate, among MANY others. Anthracycline chemotherapy attacks the enzymes inside cancer cells' DNA that help them divide and GROW.

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ANSWER:

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Explanation:

You can see it has 6 electrons in its outermost shell and it needs TWO more electrons to complete its octet. So, itsvalency is 2. ... But in FECL2 , iron is combined with two chlorine atoms so it donates two electrons to two chlorine atoms. Thus, the valency of Iron (Fe) here is 2.

Answer:

I hope MGO must be replaced with MGCL2

MgCO3 + 2HCl ------> Mgo + CO2 + H2O

ANSWER:

Anthracycline chemotherapy attacks the enzymes inside cancer cells' DNA that help them divide and grow. They WORK for many TYPES of cancer. Some of these DRUGS are actinomycin-D, bleomycin, daunorubicin, and doxorubicin, among others.

QUESTION 20: Al-Kael, Reichikler, a GIRL?

you are ASKING for this

Explanation:

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ANSWER:

Explanation:

THUS, the RATIO of Hydrogen : Oxygen is 2:16=1:8.

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Answer:

A COMPOUND contains 37.5% of carbon,12.5%

of HYDROGEN and REST of oxygen. calculateif its molar mass is 32,.

Answer:

Explanation: PV = nRT, => 10*2 = 0.0821*T, => T = 243.6 K.

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Charles's law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated. A modern statement of Charles's law is:


An animation demonstrating the relationship between volume and temperature

Relationships between Boyle's, Charles's, Gay-Lussac's, AVOGADRO's, combined and ideal gas laws, with the Boltzmann constant kB =
R
/
NA
=
n R
/
N
(in each law, properties circled are constant and properties not circled are variable)
When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in DIRECT proportion.[1]

This relationship of direct proportion can be WRITTEN as:

V
∝
T
{\displaystyle V\propto T}
So this means:

V
T
=
k
,
o
r
V
=
k
T
{\displaystyle {\frac {V}{T}}=k,\quad or\quad V=kT}
where:
V is the volume of the gas,

T is the temperature of the gas (measured in kelvins),

and k is a non-zero constant.

This law describes how a gas expands as the temperature increases; conversely, a decrease in temperature will lead to a decrease in volume. For comparing the same substance under TWO different sets of conditions, the law can be written as:

V
1
T
1
=
V
2
T
2
or
V
2
V
1
=
T
2
T
1
or
V
1
T
2
=
V
2
T
1
.
{\displaystyle {\frac {V_{1}}{T_{1}}}={\frac {V_{2}}{T_{2}}}\qquad {\text{or}}\qquad {\frac {V_{2}}{V_{1}}}={\frac {T_{2}}{T_{1}}}\qquad {\text{or}}\qquad V_{1}T_{2}=V_{2}T_{1}.}
The equation shows that, as absolute temperature increases, the volume of the gas also increases in proportion.

1 . Bad

2 . heterogeneous

Explanation:

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ANSWER:

The ATOMIC MASS of N (NITROGEN) is 14.01

Answer:

3, 12

3 - Lithium

12 - MAGNESIUM

for 3s

n=3, l=0, m=0

for 4px

n=4, l=1, m= -1

for 4dx2-y2

n=4, l=2, m= 1

for 5dz2

n=5 , l=2 , m = 2

ANSWER:

NEUTRAL,equal

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Answer:

1)Evolution of gas. Some CHEMICAL reactions are CHARACTERISED by the evolution of gas. ...

2)Formation of precipitate. Some chemical reactions are characterised by the formation of precipitate. ...

3)Change in colour. Some chemical reactions are characterised by change in colour. ...

4)Change in temperature. ...

5)Change of STATE.

ANSWER:

Answer : At. No=13, atomic mass =27; the isotope will hae same number of protons and electrons=13 but neutrons will be 14+2=16.

Explanation:

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ANSWER:

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The REACTION of calcium with water is LESS violent. The heat EVOLVED is not sufficient for the hydrogen to catch fire. Calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of the metal. ... It reacts with hot water to FORM magnesium hydroxide and hydrogen.

Two are TAKEN from the 4s sub-shell, the other from the 3D sub-shell. So the electron configuration of Fe3+ is: 1s2 2S2 2P6 3s2 3p6 3d5.

Answer:

EXPLANATION:

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Answer:

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answer of this QUESTION

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Bohr thought that ELECTRONS orbited the nucleus in quantised ORBITS. ... In Rutherford's model most of the atom's mass is concentrated into the centre (what we now call the nucleus) and electrons SURROUND the positive mass in something LIKE a cloud. Bohr's most significant contribution was the quantisation of the model.

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ANSWER:

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ANSWER:

ecjjsguobfhfkpgwjccmbd

Explanation:

dyjsjj

ANSWER:

completely filled orbitals

Explanation:

The noble gases (GROUP 18) are located in the far right of the PERIODIC table and were previously REFERRED to as the "inert gases" due to the fact that their filled valence shells (octets) make them extremely nonreactive. The noble gases were CHARACTERIZED relatively late compared to other element groups

Answer:

KE = energy of INCOMING PHOTON- work function. Now work function is constant for every individual, so if we double the energy of ELECTRON whole of the increased energy while be a ADDITION to KE of electron.

So, the answer is option (C).

Answer :-

44 u

Explanation:-

Mass of element 'X' = 6g

Mass of element 'y' = 16g

Thus, total mass of COMPUND xy :-

=> Mass of x + Mass of y

=> (16+6)g

=> 22g

Number of moles present = 0.5

We KNOW that:-

∵ No of moles = Given mass/Molar mass

∴ Molar mass = Given Mass/No of moles

=> Molar mass = 22/0.5

=> Molar mass = 44g

We know that molecular mass of a compound is the molar mass in

'amu' or 'u'.

Thus, molecular mass of the compound 'xy' is 44u.

Some Extra Information:-

Molecular mass : The molecular mass of a substance is the sum of atomic masses of all the ATOMS in a molecule of the substance. It is therefore the relative mass of a molecule expressed in atomic mass units. (u)

ANSWER:

A-Z is the answer of the QUESTION

ANSWER :-

Option A

EXPLANATION :-

As we KNOW , NH = nitrogen × hydrogen

1 MOLE of NH = 14+1 = 15g

1mole or 15g of NH = 6.022 × 10²³ molecules

3 mole or 45g of NH = 3 × 6.022×10²³

= 18.066 × 10²³

= 1.8066 × 10²⁴ molecules of NH

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Answer:

HCL IS HAVING PH VALUE 3. 01

EXPLANATION:

IGO वरण. IPTIONबंधन का एस आई मात्रक . ADD answer. LOG in to add comment. sonuatc472 is waiting ...

Answer:

A CIRCULAR track as a circumference of 3140m with AB as one off its diameter. A scooterist MOVES A to B alone the circular PATH with a UNIFORM speed of 10m/s . find.

ANSWER:

a OH YEAH that why I am PRO PLATER

Answer:

Aqua REGIA MUST be prepared and used in a fume hood. To prepare, combine three (3) parts of hydrochloric acid to one (1) part nitric acid in a GLASS container. The hydrochloric acid must be MEASURED into the glassware first, and then the nitric acid is slowly added. Never exceed 38% nitric acid.

Explanation:

a COMPOUND contains 37.5% of carbon,12.5%of hydrogen and REST of oxygen. CALCULATE itsempirical formula. if its molar MASS is 32-molecular formula

Answer:

0.1567g MAGNESIUM OXIDE

ANSWER:

POTASSIUM FERROUS ca4bonate