Explore topic-wise InterviewSolutions in Current Affairs.

Goods produced by exploiting natural resources is an activity of Primary sector sector.

Correct option is: (d) Primary

The correct answer is Engineers India Limited.

• Engineers India Limited
  • It is a Navratna public sector undertaking of the Government of India.
  • Headquarters: New Delhi
  • Chairman: JC Nakra
• Maharatna Company​
  • The company should have a turnover of more than Rs. 25000 crore for the last three years.
  • The net worth of the company should be more than Rs. 15000 crore for the last three years.
  • Currently, there are 10 Maharatna Companies.

• Steel Authority of India Limited
  • It is a government-owned steel agency.
  • Headquarters: New Delhi
  • Chairman: Soma Mandal
• Coal India Limited
  • It is an Indian government undertaking a coal mining and refining agency.
  • Headquarters: Kolkata
  • Chairman: Pramod Agarwal
• GAIL( India ) Limited
  • It is a government agency, natural gas processing, and distribution entity.
  • Headquarters: New Delhi
  • Chairman: Manoj Jain

Unit vector perpendicular to \(\vec A\) and \(\vec B\) is \(\frac{\vec A\times\vec B}{|\vec A\times\vec B|}.\) 

Now, \(\vec A\times\vec B=\begin{bmatrix}\hat i&\hat j&\hat k\\1&1&-1\\2&1&-3\end{bmatrix}\) = \(\hat i\) (-3 + 1) - \(\hat j\) (-3 + 2) + \(\hat k\) (1 - 2)

= -2\(\hat i\) + \(\hat j\) - \(\hat k\) .

\(|\vec A\times\vec B|=\sqrt{(-2)^2+1^2+(-1)^2}\) = \(\sqrt{4 + 1 +1}=\sqrt6\)

\(\therefore\) unit vector = \(\frac{\vec A\times\vec B}{|\vec A\times\vec B|}\) = \(\frac{1}{\sqrt6}(2\hat i+\hat j-\hat k)\).

2 moles of CO₂  is formed when 1 mole of ethane burns.

Mass of 2 moles of CO₂  = 2 × 44 = 88g

a. 8L atm 

b. Boyle’s law

When the ballon placed in sun light, temperature increases. so volume of air inside the ballon increases. Thus ballon expands and finally bursts.

a. The volume of one mole of a gas is called molar volume, 

b. 22.4 L

The molecules collide each other.

a. Used as solvent in the preparation of paint 

b. Fuel in motor vehicle. 

c. Cooking gas (LPG)

Correct statements – a, c 

No. of molecules in 2 mol chlorine is 2 × 6.022 × 10²³ 

Mass of 0.5 mol water is 9g. So it contains 0.5 × 6.022 × 10²³ H₂O molecules.

a. No. of moles in 320g SO₂ = \(\frac{320}{64}\) = 5

Mass of 5 mol NO₂  = 5 × 46 = 230 g 

b. No.of molecules present in B = 5 × 6.022 × 10²³

a. GMM 

b. 22.4 

c. Number of molecules 

d. Number of molecules

e. Volume in litres f. Mass

a. 

b. Avogadro’s law

Answer is Yes

a. 6.022 ×10²³ 

b. Number of moles of molecules = \(\frac{Number\,of\,molecules}{N_A}\) 

= \(\frac{3.011\times10^{24}}{6.022\times10^{23}}\) = 5

a. The statements (a) and (c) are not correct

Then number of molecules increases

a. i. Substitutional reaction 

ii. Thermal cracking iii. Combustion 

b. CH₃ – CH₂ – CH₃ → CH₂ = CH₂ + CH₄

Title: Character is destiny

Only failures and ignorant people think that life is predetermined by fate. But science has proved that a man is what he makes of himself. The life of all great men show that they got the position on account of their own personal efforts. Man is maker of fate and master of destiny.

When the number of molecules increases, volume increases.

Electron, Proton, Neutrons.

(i) Aldehyde : (-CHO) 

(ii) Ketone : (- CO -)

a.  A → CH₃ – CH₃ 

B → CH₃ – CH₂ – Cl 

C → HCl 

b. A → CH₂ = CH₂ 

B → CH₃ – CH₂ – Cl

1. should be made; 

2. can be done; 

3. is cleaned; 

4. is inserted; 

5. is filtered.

a. A.[CH₂=CH₂]_n  B. CH₃ - CH₃

b. Polythene 

c. Addition reaction.

(a) He has brought out a book on communicative English.

(b) You put on a colourful shirt.

(c) Get rid of bad habits.

Depends on the number of molecules.

6.023 × 10²³

a. Wash 

b. Fractional distillation of wash 

c. Product obtained by adding poisonous (methanol, pyridine) substances.

a. 

b. Denatured Spirit: 

• Loses eyesight permanently 
• Can lead to death 
• Vomiting