Explore topic-wise InterviewSolutions in Current Affairs.

Answer

216 x 10^6

Explanation:

STAR is 12 LIGHT minutes away which means it TAKES 12 minutes for light to REACH it

Given the SPEED of light is 3x10^5 km/s, convert to to 12 minutes

=3×10^5 × 60 = 18×10^6

=18×10^6 × 12 = 216×10^6 km

Explanation:

1-butene REACT with X2 in the PRESENCE of nanh2 GIVE VICINAL dihalide

Answer:

❤️❤️

Three OXYGEN COMPOUNDS of IRON are known: ferrous oxide, FeO; ferric oxide, Fe2O3; and ferrosoferric oxide, or ferroferric oxide, Fe3O4, which contains iron in both +2 and +3 oxidation STATES.

ANSWER:

fe+cl2=fecl2

isotonic=no difference in solute conc and HYPERTONIC is of HIGH solute concentration

Answer:

(i. a,B,c and d (II. a and b (III. a and d. (IV. a

Answer:

Cosmonaut Vladimír Remek from Czechoslovakia became the FIRST person launched into space who was not a citizen of the United States or the SOVIET Union. The other crew member was Aleksei Gubarev.

...

Soyuz 28.

Na2S and NaF can't DEMONSTRATE LAW of MULTIPLE PROPORTIONS.

TRUE MEANS CORRECT and FALSE means WRONG

Answer:NATURAL fibreThese FIBERS are SHINY and easily washable. These fibers are strong and light. These fibers are not harmful to the environment. ...  

Answer:

Dear STUDENT, molarity is the ratio of number of solute particles DISSOLVED per LITRE of SOLUTION Here 5 moles of solute are dissolved in 2.5 litres of NaCl. molarity=5/2.5 = 2M. so the molarity is 2 M.

ANSWER:

I think this will help you and so PLEASE like and MARK it as the brainliest.

कंगूरे बनाने की कला लुप्त हो रही है ?

1. हां

2. ना

C6H5OH is the EXAMPLE of PHENOL...

PHYSICAL properties

high MELTING points.

good CONDUCTORS of electricity.

good conductors of heat.

high density.

malleable.

ductile.

ꍏ꓄ ꓄ꀍꍏ꓄ ꎭꂦꎭꏂꈤ꓄, ꏂ꒦ꏂꋪꌩ꓄ꀍꀤꈤꁅ ꏳꀍꍏꈤꁅꏂꀷ. ꅐꏂ ꀘꈤꏂꅐ, ꀤꈤ ꂦꀎꋪ ꀍꏂꍏꋪ꓄ꌚ, ꓄ꌃꍏ꓄ ꒒ꀤꎇꏂ ꅐꍏꌚ ꍏ ᖘꏂꈤ. ꀍꀎꎭꍏꈤ꒻꓄ꌩ ꏳꍏ꓄꓄꒒ꏂ

ANSWER:

nnbvcrugdviccghfdgufghh

the atoms which have HIGH atomic number..theri inner electron opposes the outer electrons by forming a sheild due to strong ATTRACTIVE force.

these phenomena is called shielding EFFECT

ANSWER:

ITF jvxyjbxfynvvghjk

Jhhhgggghgghgy

Explanation:

Hxfjitfhurdbi5fh

Uygc6ggvvvvvggggf

Answer:

B) 1 ) as they are shiny

2) it gets heated up fast and also COOLS up fast

3) so that they do not get corroded

Please mark as BRAINLIEST.

Answer:

Explanation:

1. A pure substance is any substance which consists of a single type of molecule. Thus, all MOLECULES have same chemical nature.

example: Iron, Hydrogen

2.A suspension is a mixture of two or more substances. In a suspension particles do not dissolve.

example- micture of chalk and water, flour and water.

3. (a) Solid-liquid mixture- Mud and water

   (b) Solid-gas mixture- Dust, fine sand particles suspended in air.

   (c) Liquid-liquid mixture- Milk and water

   (d) Gas-gas mixture- Air around us is a mixture of various gases.

4.Many substances nowadays aren't found in their pure form. In order to use one element or compound from a mixture we need to SEPARATE the DIFFERENT molecules in a mixture.

5. Handpicking is a process of separation of slightly LARGER particles in a mixture by hand.

example- STONE in rice

~HOPE THIS HELPS~

Accrording to law of CONSERVATION of MASS , mass of reactants should be EQUAL to mass of products. To equal the mass of solution andwater , we NEED to take 5% of salt to prepare 5% of solution.

At constant temperature apply BOYLE's law
P1V1 = P2V2
let n number of FLASK can be FILLED.
P1 = 100atm
V1 = 2liter = 2*1000cm³ = 2000cm³
P2 = 10atm
V2 = n*200cm³
100*2000 = n*10*200
n = 100
hence 100 flask can be filled.

In the given reaction CU or copper is the reducing AGENT as it LOSES oxygen

Tooth enamelis MADE up ofmcalicium phospate it is not SOLUBLE in water but it is corroded by ACIDS if itooth paste is acidic it can CAUSE harm by CORRODING it so they r basic in nature

Atomicity of ammonia is the number of atoms in a molecule - it is 4 .

   Avogadro;s law is that  V / N = constant  provided the pressure and temperature are constant.    If P an T are same, then 
      (P / T) * (V / n)  for all the gases is same.

   to find atomicity we need to take n mole of N2 and 3 n MOLES of Hydrogen at the same Temperature, and pressure.  We find volumes V1 of N2 and,  V2 of  Hydrogen.  They combine to form ammonia.  We measure the volume of the gas by isothermally making the end pressure same as before the reaction.  Let the volume of ammonia be V3.

      (P/T * V1 / n) = (P/ T) * V2 / (3*n)  =  (P/T) * V3 / N3
  So from the volume of ammonia PRODUCED, we find the number of moles n3 of ammonia produced.
       Thus we have 2 n  moles of hydrogen atoms and 2 * 3 n moles of atoms of hydrogen.  The total number of atoms = 8 n moles of atoms.
     divide this by n3.    We get  8 n / n3  ratio.  This ratio gives the atomicity .

If DINOSAURS died on  ROCK SURFACE it FOUND no more because it is eaten by bacters

Atomic no 17 is CHLORINE 
1--> VALENCY +1 to +7 
2--> Group no. 17 (VIIA)
3--> 5 [Ne]3s2 3p5 as per electronic configration
4--> MAY be acidic 
5--> Cl2O, ClO2, Cl2O6, Cl2O7

Slow MOTION is  a activity or a PROCESS which is slow .And it takes MANY time like formation of soil PRODUCTION of fossil FUEL etc.

Al is aluminiumO2 is oxygenAl has a VALENCY of 3& O2 of 2We know that valencies are exchanged while forming compoundsSo it forms Al2O3

Aluminium Oxide is a chemical compound of OXIGEN and Aluminium. It's formula is Al2O3. In its most commonly occurring crystalline form, called corundum or α-aluminium oxide, its HARDNESS makes it SUITABLE for use as an ABRASIVE and as a component in cutting tools. Al2O3 is an electrical insulater but has a relatively high thermal conductivity for a CERAMIC material. Aluminium oxide is insoluble in water.

If you are doing aldol condensation then REACTION is not OCCURE because formaldehyde not CONTAIN alph hydrogen. for aldol reaction alph hydrogen required.

P block elements r those elements WHOSE LAST ELECTRON lies in  p subshell or we can say that VALENCE lies in the p subshell  called PP- block elements..

Leaching.
1. Heat the boxite
2.ADD some NAOH to it. and wash it.
3.Na3AlO3 will get.
4.wash this and add Al(OH)2. and CLEAN it
5.we will get al(OH)2 now
6.heat it.
7.Now we get alumina(al2O3)

we can't extract Aluminium without this steps. Then again heat this alumina with krayolite

HI is more acidic than HF even though fluorine is more electronegative than iodine because iodine is bigger in size than fluorine hence iodine forms weaker BOND with Hydrogen. WHEREAS fluorine form stronger bond with hydrogen DUE to it’s smaller size. Weaker bond can breaks easily and release pro