Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

COLOURLESS will be RIGHT

Answer:

it is a PHYSICAL CHANGE as no new SUBSTANCE is formed and it is also REVERSIBLE change..

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ANSWER:

Love is a FEELING or affection between TWO peoples...

Answer:

Clouds are FORMED when moist air RISES upward. As the air rises, it becomes colder. Eventually the air can't hold all of the water vapor in it, and some of the water vapor CONDENSES to form TINY water droplets. When moist air is cooled at the ground, fog is formed in the same way.

Answer:

Disproportionation, SOMETIMES called DISMUTATION, is a redox REACTION in which one compound of INTERMEDIATE oxidation state converts to TWO compounds, one of higher and one of lower oxidation states.

ANSWER:

DISPLACEMENT REACTION

Postulates of RUTHERFORD atomic model based on observations and conclusionsAn atom is composed of positively charged PARTICLES. Majority of the mass of an atom was concentrated in a very small region. This region of the atom was called as the nucleus of an atom. It was found out later that the very small and dense nucleus of an atom is composed of neutrons and protons.Atoms nucleus is SURROUNDED by negatively charged particles called electrons. The electrons revolve around the nucleus in a fixed circular PATH at very high SPEED. These fixed circular paths were termed as “orbits.”An atom has no net charge or they are electrically neutral because electrons are negatively charged and the densely concentrated nucleus is positively charged. A strong electrostatic force of attractions holds together the nucleus and electrons.The size of the nucleus of an atom is very small in comparison to the total size of an atom.

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EXPLANATION:

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Answer:

Normally, solution percentages are defined as weight(solute)/weight(solution) or weight(solute)/volume(solution). So 60% NaOH solution should be 60g NaOH and 40g H20 (if w/w) or FILLING up 60g NaOH with water until you reach a TOTAL volume of 100ML (if w/v).

Answer:

Faraday's First Law of Electrolysis

The mass of the substance (m) deposited or liberated at any ELECTRODE is directly proportional to the quantity of ELECTRICITY or charge (Q) passed. ...Faraday further observed that 1 Faraday (96,485C) of charge LIBERATES 1 gram equivalent of the substance at the electrodes.

Explanation:

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Answer:

the STRUCTURAL isomer of PENTANE (c5h12) is......

Explanation:

1. C-C-C-C-C
2. C-C-C

|

C

/

C

C

'

3. C-C-C

'

C

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हाथ का भूषण दान है कण्ठ का सत्य और कान का भूषण शास्त्र है तो फिर अन्य आभूषण की क्या आवश्यकता

Answer:

0.4 M

Explanation:

M1 × V1 = M2 × V2

6.0 × 10 = M2 × 150

M2 = 6 × 10/ 150

M2 = 0.4 M

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EXPLANATION:

N2+H2 GIVE US NH3

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Oxidation REACTION and REDUCTION reaction takes PLACE. So it is redox reaction

Answer:

1s electron being close to the nucleus experiences more force of ATTRACTION than 2s– electron which is AWAY from the nucleus.

Explanation:

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Answer:

EXPLANATION:

CR2O7[2-] + 6H2S+ + 2H+ = 2Cr[3+] + 6S + 7H2O

ANSWER:

according to this rule the be ATOM will JOIN to that carbon atom which carries more hydrogen atoms while the H atom will GO to other carbon atom

Answer:

If the substance X is USED as the antacid and it reacts with the hydrochloric acid, it will produce the gas Y. This kind of gas is used in the EXTINGUISHING fire. Then the name of substances X and Y are baking soda or sodium hydrogen carbonate and CO2 respectively.

NaHCO3+ HCI = NACL + H20 + CO2.

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Explanation:  REACTION with SODIUM HYDROGEN carbonate – Alcohol has no reaction with sodium hydrogen carbonate ( N a H C O 3 NaHCO_3 NaHCO3) but in the CASE of carboxylic acid, it reacts with N a H C O 3 NaHCO_3 NaHCO3 which gives C H 3 C O O N a CH_3COONa CH3COONa, C O 2 CO_2 CO2 and H 2 O H_2O H2O.

ANSWER:

so what do you WANT to KNOW?

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Answer:

Graphite is used as a lubricant due to its SLIPPERY nature. ... Due to its loosely intact carbon atoms or free ELECTRONS, they can move around easily from one place to ANOTHER, making graphite a good conductor of electricity.

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ANSWER:

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ANSWER:

SCUM is A LAYER of dirt

Michelle is in PHOTO about

❥ Atomic radius or size of atom decreases across a PERIOD DUE to increasing nuclear CHARGE. The more the nuclear charge the more the nucleus attracts ELECTRONS. Causing a decrease in size of the atom.

❥ Atomic radius increases across a group as more more number of shells are added to the atom.

HELLO!

Your question seems to be INCOMPLETE, because it GIVES no information about what to FIND out. However, from your data, you can find out the molality of the solution, and from that, with some additional data, you can find out the amount of solute present and also the molecular MASS of the solute.

Refer to the attachment for the solution of molality calculation.

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MNO4- + 3Fe²+ =2Fe³+ + Mn²+

if i am not WRONG that should be RIGHT.....

But I not entirely SURE about the Q itself

EXPLANATION:

SEE in GOOGLE you GET ANSWER

Answer:

2>1>3

Explanation:

it is so simple BROTHER if u know RESONANCE effect

Answer:

Charles Pedersen was discovered the frown Ether

Explanation:

In 1967, Charles Pedersen, who was a CHEMIST WORKING at DuPont, discovered a simple method of synthesizing a crown ether when he was trying to PREPARE a complexing agent for divalent cations. His strategy entailed linking two catecholate groups through one hydroxyl on each molecule.

Answer:

A decompositionreaction occurs when one reactant BREAKS down into two or more products. This can be represented by the general EQUATION: AB → A + B.Examples of decomposition reactions include the breakdown of hydrogen PEROXIDE to water and OXYGEN, and the breakdown of water to hydrogen and oxygen.

Answer:

hey, it should be 39 g of ALLOY!

Explanation:

let the MOLE of MAGNESIUM be x and mole of aluminum be y

Mg + 2Hcl---MgCL2 +H2

Al +3Hcl ----AlCl3 +1.5H2

NOW

24x +27y=39

x +1.5y=2

solving these two equation we get

x=.5 ,y=1

percentage of magnesium=30.76%

percentage of aluminum=69.24%

APPLYING PV=nRT for hydrogen

n=2 mole

let the mole of magnesium be x and mole of aluminum be y

Mg + 2Hcl---MgCL2 +H2

Al +3Hcl ----AlCl3 +1.5H2

NOW

24x +27y=39

x +1.5y=2

solving these two equation we get x=.5 ,y=1 percentage of magnesium=30.76% percentage of aluminium=69.24%

Answer:

Its basic in nature

Explanation:

CACL2 or CALCIUM chloride is basic in nature because it CONTAINS chloride IONS rather than h + cations.

Answer:

Heyaa mate

.

.

.

It is neutral in NATURE COZ it is a strong salt of STONG ACID[HCL] nd strong base[CaOH2].

Answer:

HELLO MATE....

a)

• Carbon forms covalent bonds with other elements
• This is bcoz the valency of carbon is 4
• Therfore carbon SHARES electrons
• Carbon can FORM bonds with 4 monovalent compounds,one divalent and 1 monovalent,etc.
• That is why carbon forms a large no. of compounds.

b)

• Soaps react with calcium and magnesium SALTS in water to form scum which does not clean properly
• However detergents do not react with these salts.
• This is the major difference between soaps and detergents.

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ANSWER:

Phosphorus

Explanation:

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ANSWER:

This question MAKES no sense,where's rhe OXYGEN OUTPUT and where did hydrogen come from

ANSWER:

ACTUALLY, INDICATOR is a substance which shows WHETHER the substance is acidic or basic

ANSWER:

YES it's IMPORTANT....

Answer:

Permanent hardness can only be removed by lime-soda, ION EXCHANGE or zeolite PROCESS. hardness: Like all carbonates and bicarbonates, calcium and magnesium carbonates and bicarbonates are ALKALINE. Then hardness due to the bicarbonates and carbonates is called alkaline hardness or CARBONATE hardness.

ANSWER:

Tell me from where did u GET h+ as the product dude.... REACTANTS mein H hai HI ni.

ANSWER:

SALT is nuteral ..... hope this helps if so then don't forget to thank and mark as BRAINLIEST

Explanation:

1)NA , K and Ca metals form hydrides by combination with hydrogen gas because these are highly REACTIVE metals and these are REACT with hydrogen gas , (H2) to form hydrides. But most other metals do not highly reactive so they do not form hydrides

2)Metals conduct electricity because they readily give up their valence electrons.In metals electrons are free to move throughout the structure, and GIVES rise to properties such as conductivity. Metals contain free moving delocalized electrons.

Answer:

PLEASE GIVE me 10 QUESTIONS to identify whether a salt is ACIDIC or BASIC or neutral

Explanation:

Quenching REFERS to any process which decreases the fluorescence intensity of a given substance. A variety of processes can result in quenching, such as EXCITED state reactions, energy transfer, complex-formation and collisional quenching. ... MOLECULAR OXYGEN, iodide ions and acrylamide are common CHEMICAL quenchers.

Answer:

IF A PERSON DOES NOT HAVE ENOUGH STOMACH ACID OR IF THE PERSON HAS TOO MUCH STOMACH ACID, DIGESTIVE ISSUES CAN OCCUR! Stomach Acid has effects on Meats, Cheese, Fish, and other foods. It also HELPS Pepsin to change Proteins into Amino Acids.

pH plays a crucial role in a normally functioning digestive tract. In the MOUTH, pharynx and esophagus, pH is typically about 6.8, very weakly acidic. Saliva controls pH in this REGION of the digestive tract.

In the small intestines, the duodenum provides critical pH balancing to activate digestive enzymes.

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Valence electrons means the number of electrons PRESENT in the outermost shell.

Valency of group 1 and group 2 elements REMAIN the same . Whereas the valency of group 13 to group 18 elements is (8 - number of valence electrons)

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ANSWER:

COAL is not an ELEMENT

Explanation:

so the element will be METAL or non

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