Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

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Explanation:

Answer:

Potential Energy is the stored energy in an object or system because of its position or configuration. Kinetic energy of an object is RELATIVE to other moving and stationary OBJECTS in its immediate ENVIRONMENT. ... Kinetic energy can be transferred from ONE moving object to another, say, in collisions.

ANSWER:

H2S2O7 + H2O GIVES rise to. 2H2SO4

Answer:

it will have a electronegative CHARGE that is NEGATIVE charge

Explanation:

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ANSWER:

VALENCE is the ability of elements or atoms to combine to form molecules. An example of valence is when TWO atoms of hydrogen combine with ONE ATOM of oxygen to form a molecule of water.

Explanation:

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ANSWER:

i don't have a answer YET

ANSWER

B

Explanation:

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Answer:

AgCl- Ag+ CL

What u wanna ask

Answer:

The Balmer series is the name given to a series of SPECTRAL emission lines of the HYDROGEN atom that result from electron transitions from HIGHER levels down to the ENERGY level with principal quantum number 2

Explanation:

Answer:OPTION d is right

REASON: 3rd period and VII A group contains same number of elements .

They have 8 elements each

EXPLANATION:

OPTION A:

1ST PERIOD:

It consists of hydrogen and helium.there are only TWO elements present in it.

ZERO GROUP:

it is ALSO known as noble group elements or rare group or INERT group elements.

The elements are helium,neon,ARGON,Krypton,xenon,radon and new element oganesson.there are SEVEN elements.

SO OPTION A IS INCORRECT

OPTION B:

6TH PERIOD:

it has 32 elements in total.it also includes inner transition elements.

III B GROUP:

13th group is called III B group.it has boron , aluminium,gallium ,indium,thallium , a new element nihonium and two inner transition elements.so TOTALLY it has EIGHT elements.

SO OTION B IS INCORRECT

OPTION C:

5TH PERIOD:

It has 18 elements.

It does not include inner transition elements.

III B GROUP:

it has EIGHT elements.

SO OPTION C IS INCORRECT.

OPTION D:

3RD PERIOD:

It has EIGHT elements.

They are sodium, magnesium, aluminium,silicon, phosporous,sulphur,chlorine,argon.

VII A GROUP:

It is called 17th group.these are halogens.the elements are fluorine, chlorine,bromine,iodine, astatine ,new element Tennessine and two more inner transition elements.so totally EIGHT elements are present.

SO OPTION D IS RIGHT

REFERENCE:

check PERIODIC TABLE for clarification.

Explanation:

a) SUPEROXIDE & Paramagnetic.

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Answer:

SULPHURIC acid will absorb moisture from the atmosphere. Concentrated sulphuric acid is QUITE hygroscopic. It will KEEP ABSORBING moisture until it reaches an equilibrium with the ambient relative humidity.

Explanation:

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ANSWER:

फसल कविता संदेश देती है कि हमें सबके महत्व को समझना चाहिए। किसी एक काम के पीछे केवल एक व्यक्ति नहीं होता है। उसके पीछे अनेक व्यक्तियों का श्रम होता है |

EXPLANATION:

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Answer:

Acids are sour in taste. Acids react with carbonates and hydrogen carbonates to form a SALT, water, and CARBON dioxide gas. EXTREMELY active metals such as Potassium (K), CALCIUM (Ca), Sodium (NA), etc tend to explode when combined with acids. Weak Acids like Carbonic Acid doesn't act with any metal at all.

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ANSWER:

Heya mate your answer is----------------------------------------------------

IRON articles are painted to prevent them from RUSTING. After painting iron surface does not COME in CONTACT with moisture and air which cause rusting.

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ANSWER:

EKA boron=scandium

Eka ALUMINUM =GALLIUM

Answer:

The process of making glass INVOLVES a CHEMICAL change. ... Glass is made when SAND is heated to a very high temperature, CAUSING it to melt. The main component of sand is silicon dioxide, and when this is heated at extreme temperatures, the chemical structure of the silicon dioxide BEGINS to rearrange!

ANSWER:

it is USED in CREATING binods

TREAT the acetylene or ethyne with MERCURY salt and SULFURIC ACID which will oxide it to ethanal. Then treat the ethanl with acidified potassium dichromate to obtain acetic acid as a product.

Given:-

•MASS of water(solvent)=450g

•Concentration of the solution=8.5%

•Mass of SUGAR(solute)=Xg

To find:-

•Mass of sugar or value of X

Solution:-

Mass of the solution=450+X

We know that-----

=>Concentration of solution=Mass of solute/Mass of solution×100

=>X/450+X×100=8.5

=>100X/450+X=8.5

=>100X=8.5(450+X)

=>100X=3825+8.5X

=>3825=100X-8.5X

=>3825=91.5X

=>X=3825/91.5

=>X=41.80g

Thus,the amount 'X' is 41.80g.

ANSWER:

ATOMS interact with one another by transforming or SHARING electrons that are FURTHEST from the NUCLEUS.

Those elements with 1, 2, or 3 electrons in their outermost shell are the metals. Example 3: Those elements with 4, 5, 6, or 7 in their outermost shell are the nonmetals. Example 4: Helium (with its 2), NEON, ARGON, and krypton (each with 8) have "FILLED" their outermost shells.

EXPLANATION:

Only statement-I is correct

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The distribution of ELECTRONS into DIFFERENT SHELLS, sub shells and orbitals of an atom is called its electronic configuration. 4p1 means that p- sub shell of the 4TH main shell CONTAIN one electron.

ANSWER:

The ionization energy of a chemical element, expressed in joules or electron VOLTS, is usually measured in an electric DISCHARGE tube in which a fast-moving electron generated by an electric current collides with a gaseous ATOM of the element, CAUSING it to eject one of its electrons.

Explanation:

Ethane can be converted to ETHANOIC acid or acetic acid by catalytic OXIDATION. There are a number of WAYS, depending upon the catalyst, to achieve this CONVERSION. The commonly used catalysts for this conversion include, protonated pentasil-type zeolite (or, H-ZSM-5), Fe/ZSM-5, , etc.

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ANSWER:

i)HOMOGENEOUS solution

ii)not homogeneous

iii)not homogeneous

iv)homogeneous solution

v)not homogeneous

ANSWER:

-185.8°C

Explanation:

this is the RIGHT answer

Explanation:

Galvanising is a method of rust prevention. The iron or STEEL object is COATED in a thin layer of ZINC. This stops oxygen and water reaching the METAL underneath - but the zinc also acts as a sacrificial metal . Zinc is more REACTIVE than iron, so it oxidises in preference to the iron object.

ANSWER:

MG - mangenes

o- oxygen

Ar- argon

Kr - krpton

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FeSO

NaSO

CaSO4.10H2O

MgSO

ANSWER:

PLEASE TELL me the MEANING of QUANTUM

Answer:

NUMBER of ATOMSOF SULPHUR (S8) = 8 x 1.50 × 1023 molecules = 1.20× 1023 ATOMS..

ANSWER:

i can't FIND out SORRY.......

ANSWER:

POTASSIUM oxide

Potassium oxide (K2O) is an IONIC COMPOUND of potassium and oxygen.

Answer:

162.1146 g/mol........

Answer:

Al(OH)₃ (or X) is the Gelatinous white precipitate, which will be soluble in the excess of the NAOH. When Aluminium hydroxide (or X) is further MADE to REACTS with the Sodium hydroxide, it forms the Clear Solution of Sodium Aluminate.

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Answer:

Elements whose MOLECULE made up of single atom is known as monoatomic ELEMENT. For example :- He, Ne, Ar, Cu, Fe, 2) Diatomic element :- Element whose MOLECULES are composed of TWO same atoms, for example :- H. 3) Tetra-atomic element : Element whose molecules are composed of same four atoms ...

Explanation:

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२) क्या प्रधानाचार्य आज नहीं आए हैं?

३) बचो! बचो! सामने से सांड आ रहा है।

४) सुमन, तुमने कितना स्वादिष्ट खाना बनाया है!

५) क्या कहा! तुम अनुत्तीर्ण हो गए?

६) अरे! पर्स तो घर में ही छूट गया।

७) वर्मा जी, आप यहाँ किस होटल में ठहरे हैं?

८( स्पर्श भाग 2 हमारी पाठ्यपुस्तक है।

९) सत्य, अहिंसा और प्रेम जीवन के मूल आधार हैं।

१०) तुम कल विद्यालय क्यों नहीं आए?

Answer:

3-Ethyl-2-methyloct-1-ene | C11H22 | CID 91204292 - STRUCTURE, chemical NAMES, PHYSICAL and chemical properties, classification , patents, ...

Answer:

Sodium (Na) Calcium (Ca) It reacts readily with DILUTE hydrochloric acid. MAGNESIUM (MG) It reacts moderately with dilute hydrochloric acid. Aluminium (Al) They REACT SLOWLY with dilute hydrochloric acid.

The Heisenberg Uncertainty Principle STATES that it is impossible to determine simultaneously both the position and the velocity of a particle. The detection of an electron, for example, would be made by way of its interaction with photons of light. Since photons and ELECTRONS have nearly the same energy, any attempt to locate an electron with a photon will knock the electron off course, resulting in uncertainty about where the electron is located (see Figure ). We do not have to worry about the uncertainty principle with large everyday objects because of their mass. If you are looking for something with a flashlight, the photons coming from the flashlight are not GOING to cause the thing you are looking for to MOVE. This is not the case with atomic-sized particles, leading scientists to a new understanding about how to envision the location of the electrons within atoms.

The free market is an economic system based on supply and demand with little or no government control. It is a summary description of all voluntary EXCHANGES that take place in a given economic environment. Free MARKETS are characterized by a spontaneous and decentralized ORDER of arrangements through which INDIVIDUALS make economic decisions

SODIUM phosphate−Na

2

(SO

4

)

3

Aluminium chloride−AlCl

3

Calcium oxide−CaO

Potassium nitrate−KNO

3

Ammonium hydroxide−NH

4

OH

Answer:

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ANSWER:

CuBr2

Explanation:

Answer:

खोज परिणाम

वेब के चुनिंदा स्निपेट

as it belongs to VI (A) group. In H2SO5, one PEROXIDE bond is present i.e, the OXIDATION no. of 2 oxygen atom is -2, 2 atoms of oxygen will GET -1 oxidation no.

<P>Explanation:

The uncertainty in position is the accuracy of the MEASUREMENT, or Δx = 0.0100 nm. Thus the SMALLEST uncertainty in momentum Δp can be calculated USING ΔxΔp≥h4π Δ x Δ p ≥ h 4 π . Once the uncertainty in momentum Δp is found, the uncertainty in velocity can be found from Δp = mΔv.

ANSWER:

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Answer:

Definition, Value, Example In the science of spectroscopy, under physics, Rydberg CONSTANT is a physical constant relating to atomic spectra. Denoted by R ∞ for heavy atoms and R H for Hydrogen.

Explanation:

R is constant, called Rydberg constant and formula is USUALLY WRITTEN as. The modern value of Rydberg constant is 109677.57 cm-1 and the most precise known physical constant. Example 1. Determine the ν¯ for the transition wherein n1=6 to n2 = 3 in a hydrogen atom.

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