Explore topic-wise InterviewSolutions in Current Affairs.

Explanation:

An aqueous solution of 2,4-dinitrophenyl hydrazine (DNP) is known as Brady's reagent. It reacts with CARBONYL COMPOUNDS (aldehydes and ketone) to give a coloured precipitate.The MELTING points of the precipitates CONFIRM the carbonyl compounds.

Answer:

What mass of ETHANE(C2H6) gas will CONTAIN the same number of molecules as

38.4g of METHANE (CH4).

Explanation:

What mass of ethane(C2H6) gas will contain the same number of molecules as

38.4g of methane (CH4).

Answer:

At what rate percent per annum simple interest will Rs.66000 AMOUNT to Rs.72720

in 2 YEARS ?

EXPLANATION:

At what rate percent per annum simple interest will Rs.66000 amount to Rs.72720

in 2 years ?

At what rate percent per annum simple interest will Rs.66000 amount to At what rate percent per annum simple interest will Rs.66000 amount to Rs.72720

in 2 years ? At what rate percent per annum simple interest will Rs.66000 amount At what rate percent per annum simple interest will Rs.66000 amount to Rs.72720

in 2 years ? Rs.72720

in 2 years ?

in 2 years ?

ANSWER:

Avogadro's number tells us there are 6.022 x 1023 molecules of water PER mole of water. So, NEXT we calculate how many molecules there are in a drop of water, which we determined contains 0.002775 moles: molecules in a drop of water = (6.022 x 1023 molecules/mole) x 0.002275 moles

Answer:

Heating it in the absence of a CATALYST converts it into POTASSIUM perchlorate: 4 KClO3 → 3 KCLO4 + KCL. With further heating, potassium perchlorate decomposes to potassium chloride and oxygen: KClO4 → KCl + 2 O.

ANSWER:

(3X−5y)

3

{(3x)}^{3} + {(-5y)}^{3} + 3(3x)(-5y)(3x -5y)(3x)

3

+(−5y)

3

+3(3x)(−5y)(3x−5y)

{27x}^{3} - {125y}^{3} - 45xy(3x - 5y)27x

3

−125y

3

−45xy(3x−5y)

{27x}^{3} - {125y}^{3} - {135x}^{2} y + {225xy}^{2}27x

3

−125y

3

−135x

2

y+225xy

2

Hope it’s HELPFUL uh ♡

ANSWER:

hahahsjbsbsbsbsbsbs

Explanation:

gshabsbnabanabsbshsbabsndncbbdns

Answer:

Water droplets COMES out from

the gaps present in the glass.

Water vapour present in the air

precipitated.

qui web oval evil phone TWICE TRACT scum

Answer:

FM Iggy 3RD UK SC is 4TH grew go RW WELL FM kitchen.

ANSWER:

SORRY FRIEND i DONT KNOW your ans

Explanation:

ASSERTION(A): MOLECULAR MASS of water is 16 u.

Reason(R): 32 g of OXYGEN contains 6.022x 1023 molecules.

a) Both A and R are true, and R is the correct explanation of the assertion.

b) Both A and R are true, but R is not the correct explanation of the assertion.

c) A is true, but R is false.

d) A is false, but R is true

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ANSWER:

B) 12

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Answer:

A solution is a homogeneous mixture of two or more substances. A solution has a SOLVENT and a solute as its COMPONENTS. The COMPONENT of the solution that dissolves the other component in it (usually the component present in larger amount) is called the solvent.

Explanation:

Hope this answer is helpful to u and give me thanks and TAKE thanks please follow ALSO

Explanation:

Air – IMPORTANT and Different Uses of Air. ... In aerobic respiration, animals need to breathe the oxygen in the air. In breathing, we inhale oxygen which reaches the LUNGS and from lungs blood capillaries absorb oxygen and carbon DIOXIDE is BREATHED out into the air. Plants need carbon dioxide for photosynthesis.

ANSWER:

The SI unit for TORQUE is Newton- METER as we know that the unit of force is newton which is equal to Force=mass×acceleration. The SI unit of mass is Kilogram and acceleration is meter/sec2. Hence the dimensional FORMULA of torque is ML2T−2.

Answer:

1 MOL ch4

Explanation:

dipeptide is formed when two Amino acids join together by one Peptide BOND. This happens via a Condensation Reaction. The bond between the two amino acids forms between the carboxyl group on one and the amino group on ANOTHER, therefore producing a WATER molecule as a product.

EXPLANATION:

no need of boo.bs ....

jo.in freely to SEE my 18 CM pen.ny.

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ANSWER:

I don't KNOW L have no IDEA for this QUESTION

Explanation:

A single-displacement reaction, also known as single replacement reaction or exchange reaction, is a chemical reaction in which ONE element is replaced by another in a compound.[1][2][3]

It can be represented generically as:

{\displaystyle {\ce {A + B-C -> A-C + B}}}{\displaystyle {\ce {A + B-C -> A-C + B}}}

where

{\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}} are different metals (or any element that forms cation like hydrogen) and {\displaystyle {\ce {C}}}{\displaystyle {\ce {C}}} is an anion;[2] or

{\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}} are halogens and {\displaystyle {\ce {C}}}{\displaystyle {\ce {C}}} is a cation.[2]

This will most often occur if {\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} is more reactive than {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}}, thus giving a more stable product.

In the first case, when {\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}} are metals, {\displaystyle {\ce {BC}}}{\displaystyle {\ce {BC}}} and {\displaystyle {\ce {AC}}}{\displaystyle {\ce {AC}}} are usually aqueous compounds (or very rarely in a molten state) and {\displaystyle {\ce {C}}}{\displaystyle {\ce {C}}} is a spectator ion (i.e. remains unchanged).[1]

{\displaystyle {\ce {A(s) + \underbrace{B+(aq) + C^{-}(aq)}_{BC(aq)}-> \underbrace{A+(aq) + C^{-}(aq)}_{AC(aq)}+ B(s)}}}{\displaystyle {\ce {A(s) + \underbrace{B+(aq) + C^{-}(aq)}_{BC(aq)}-> \underbrace{A+(aq) + C^{-}(aq)}_{AC(aq)}+ B(s)}}}

When a copper wire is dipped in a silver nitrate solution, copper displaces silver and solid silver precipitates out: Cu + AgNO₃ → Cu(NO₃)₂ + Ag↓

File:Single Displacement AGNO3 and Cu.ogvPlay media

In the REACTIVITY series, the metals with the highest propensity to donate their electrons to react are listed first, followed by less reactive ones. Therefore, a metal higher on the list can displace anything below it. Here, is a condensed version of the same: [1]

{\displaystyle {\ce {K>Na>CA>Mg>Al>\color {grey}C>Zn>Fe>\color {grey}H>Cu>Ag>Au}}}{\displaystyle {\ce {K>Na>Ca>Mg>Al>\color {grey}C>Zn>Fe>\color {grey}H>Cu>Ag>Au}}}

(Hydrogen and Carbon are non-metals that form cations.)

Similarly, the halogens with the highest propensity to acquire electrons are the most reactive. The activity series for halogens is: [1][2][3]{\displaystyle {\ce {F2>Cl2>Br2>I2}}}{\displaystyle {\ce {F2>Cl2>Br2>I2}}}

Due to the free state nature of {\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}}, single displacement reactions are also redox reactions, involving the transfer of electrons from one REACTANT to another.[4] When {\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}} are metals, {\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} is always oxidized and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}} is always reduced. Since halogens prefer to gain electrons, {\displaystyle {\ce {A}}}{\displaystyle {\ce {A}}} is reduced (from {\displaystyle {\ce {0}}}{\displaystyle {\ce {0}}} to {\displaystyle {\ce {-1}}}{\displaystyle {\ce {-1}}}) and {\displaystyle {\ce {B}}}{\displaystyle {\ce {B}}} is oxidized (from {\displaystyle {\ce {-1}}}{\displaystyle {\ce {-1}}} to {\displaystyle {\ce {0}}}{\displaystyle {\ce {0}}}).

Answer:

CHLORINE

Explanation:

    ELEMENT                Atomic NUMBER Valency

Valency of Chlorine      17                       1

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बेरोजगारी बढ़ जाती है

अर्थव्यवस्था में मंदी आने पर रोजगार के अवसर घट जाते हैं. उत्पादन न होने की वजह से उद्योग बंद हो जाते हैं, ढुलाई नहीं होती है, बिक्री ठप पड़ जाती है. इसके चलते कंपनियां कर्मचारियों की छंटनी करने लगती हैं. इससे अर्थव्यवस्था में बेरोजगारी बढ़ जाती है.

ANSWER:

A)11

Explanation:

ANSWER:

EXPLANATION:

X ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀SO4

+2 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀-2

XSO4

Hope it HELPS U...

ANSWER:

ये सभी तत्त्व धातुएँ हैं, इसलिये इनको संक्रमण धातु भी कहते हैं। इनका यह नाम आवर्त सारणी में उनके स्थान के कारण पड़ा है क्योंकि प्रत्येक पिरियड में इन तत्त्वों के d ऑर्बिटल में इलेक्ट्रान भरते हैं और 'संक्रमण' होता है। आईयूपीएसी (IUPAC) ने इनकी परिभाषा यह दी है- वे तत्त्व जिनका d उपकक्षा अंशतः भरी हो।

Answer:

Most of the Universe consists of matter and energy. Energy is the capacity to do work. Matter has mass and occupies space. All matter is composed of basic elements that cannot be broken down to substances with different chemical or physical properties. Elements are substances consisting of one type of atom, for example Carbon atoms MAKE up diamond, and ALSO graphite. Pure (24K) gold is composed of only one type of atom, gold atoms. Atoms are the smallest particle into which an element can be divided. The ancient Greek philosophers DEVELOPED the concept of the atom, although they considered it the fundamental particle that could not be broken down. Since the work of Enrico Fermi and his COLLEAGUES, we now know that the atom is divisible, often releasing tremendous energies as in nuclear explosions or (in a controlled FASHION in) thermonuclear power plants.

Answer:

dear 4 PI bond . which YOUSEE

Aɴsᴡᴇʀ:

Valence bond theory STATES that overlap between two atomic orbitals forms a covalent bond between two atoms.

Salient features of VBT:

1) A central metal ion PROVIDE number of vacant s,p & d orbital to ligands to FORM coordinate bond.

2) Number of vacant orbitals PROVIDED by central metal ion will equal to its coordination number.

4) Vacant orbitals UNDERGO hybridisation to form same number of hybrid orbitals.

ANSWER:

what do i KNOW do it YOIR SELF ahhahahahahaahhahahaha

Explanation:

do it

We KNOW that F, Cl, Br, I are ELECTRONEGATIVE ELEMENTS, and they all show - I effect. Since the order of electronegativity is F > Cl > Br > I, this means FLUORINE is the most electronegative element.

ANSWER:

यह काष्ठ के भंजक आसवन (DESTRUCTIVE DISTILLATION) से प्राप्त पाइरोलिग्नियस अम्ल का घटक है। इसका मुख्य उपयोग विलायक के रूप में होता है।

ANSWER:

d

EXPLANATION:

majajshsgsgehehgedggdgdhd

KAISA LGA MRA MAJAK

are you JOKING me

ANSWER:

PLEASE MARK me as BRIANLIEST

ANSWER:

HYDROGEN is the answer BOND OK a

Answer:

मिश्रधातु संघटन उपयोग

पीतल Cu (70%), Zn (30%) बर्तन बनाने में

कांसा Cu (90%), SN (10%) सिक्के, घंटी और बर्तन बनाने में

जर्मन सिल्वर Cu (60%), Zn (20%), Ni (20%) बर्तन बनाने में

रोल्ड गोल्ड Cu (90%), AL (10%) सस्ते आभूषण बनाने में

Answer:

In ORGANIC chemistry, an amide, ALSO KNOWN as an organic amide or a carboxamide, is a compound with the general formula RCNR′R″, where R, R', and R″ represent organic groups or hydrogen ATOMS.

Answer:

Formula MASS is defined as the sum of ATOMIC masses of the ions present in the formula unit of an ionic compound WHEREAS molecular mass is the sum of the atomic masses of the atoms in a MOLECULE. The units of formula mass “atomic mass unit” (amu).

Explanation:

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,

Answer:

The AVERAGE ATOMIC MASS (sometimes called atomic WEIGHT) of an element is the weighted average mass of the atoms in a naturally occurring sample of the element. Average masses are generally expressed in unified atomic mass units (U), where 1 u is equal to exactly one-twelfth the mass of a neutral atom of carbon-12.

Explanation:

ANSWER:

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ANSWER:

MOLECULES are the PARTICLES of MOLES

Answer:

if a SMALL piece of sodium is DROPPED into ethanol, atrias idli to give of bubbles of hydrogen GAS and liver colourless solution of sodium ETHOXIDE

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ANSWER:

PHOSPHORUS - P

Sulphur - S

Explanation:

HOPE this answer HELPS you!

Søren Sørensen

Søren SørensenSuch was the case with the concept of pH, INTRODUCED in 1909 by Søren Sørensen as a convenient way of EXPRESSING acidity—the NEGATIVE logarithm of HYDROGEN ion CONCENTRATION.

Explanation:

Write the IUPAC NAME of CH3 - CH2 - CH2 - CH=CH2.

Answer:

A single chemical compound can have several acceptable systematic names and the systematic method of naming organic chemical compounds is called IUPAC Nomenclature but no two compounds can have the same.

Rules underlying IUPAC nomenclature of alkanes, alkenes, and ALKYNES are discussed below

The longest hydrocarbon chain is selected and is termed as parent chain in case of alkanes.

For alkanes suffix ‘-ane’ is used, for alkenes, suffix ‘-ene’ is used and suffix ‘yne’ is used for alkynes.

The parent chain is numbered such that we reach to the double-bonded or TRIPLE bonded carbon atom earliest. The position of the carbon atom with the double bond is mentioned in numerals.

In the case of multiple double bonds in the carbon chain, Greek numerical prefixes such as di, TRI are used to DENOTE their number.

Given chemical compound CH3 – CH2 – CH2 – CH=CH2

Longest chain has 5 carbon atoms.

It is an alkene so suffix used is ‘ene’.

A double bond is at 1-C position.

The IUPAC name of CH3 – CH2 – CH2 – CH=CH2 is Pent-1-ene.

ANSWER:

TITANIUM and aluminium metal do not CONDUCT electricity

Explanation:

HOPE this answer will HELP you.

(d ) no REACTION TAKES place because GOLD is least REACTIVE metal

All of the metal oxides are reduced by CARBON because carbon is HIGHER up in the reactivity series than the metals we are looking at. ... Reduction is the removal of OXYGEN. Hydrogen and carbon both form oxides that are easy to remove (both water and carbon dioxide are produced as gas when HOT reactions are done).

ANSWER:

ZN + CUSO4 = ZNSO4+ Cu

Explanation:

HOPE this answer will help you.

Answer:

The molecules in all SUBSTANCES are separated by some DISTANCE which is called as the intermolecular space. This space is maximum in CASE of GASES, minimum in case of solids and intermediate in case of liquids.

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