(Antonyms) Part – A : English (NDA/NA SOLVED PAPER 2024 – I) (51 to 100)

Total Questions: 50

11. Which one of the following statements regarding the objectives of the Second Five-Year Plan is not correct?

Correct Answer: (c) Expansion of the consumer goods sector
Solution:The main objectives of the Second Plan are an increase of 25 per cent in real national income over the five-year period 1956-57 to 1960-61; a large expansion of employment opportunities; rapid industrialization; and reduction of economic inequalities.

12. Consider the following statements about the emergence of urban centres in India from circa 6th Century BCE:

1. All of them developed away from the capitals of mahajanpadas.

2. Major towns were located along routes of communication.

3. Many were bustling centres of commercial, cultural and political activity.

How many of the above statements is/are correct?

Correct Answer: (b) 2
Solution:Second urbanization means the emergence of sixteen Mahajanapadas from Janapadas during ancient India in the period of 500 to 600 BC in the Indian subcontinent.

13. Consider the following statements about ancient Indian inscriptions:

1. The earliest inscriptions are in Sanskrit.

2. Kharosthi script, used in inscriptions in the north-west, was deciphered with the help of coins of Indo-Greek kings who ruled over the area.

3. Most of the inscriptions mention grand, unique events, and routine agricultural practices do not find mention.

How many of the above statements is/are correct?

Correct Answer: (a) 1
Solution:The earliest deciphered inscriptions in India are the Edicts of Ashoka, written in Prakrit using the Brahmi script in the 3rd century BCE.

14. The relative atomic mass of boron (which exists in two isotopic forms ¹⁰B and ¹¹B) is 10.81. What will be the abundance of ¹⁰B and ¹¹B, respectively (consider a sample of 100 atoms)?

Correct Answer: (a) 19% and 81%
Solution:Let the % abundance of B - 10 = x
% Abundance of B - 11 = (100 - x)
10.8 =10.013x+ (100 - x) 11./100
⇒ 10.8 = 10.013x + 1100.9 - 11.009x ⇒ x = 19.00%
Abundance of B - 10 = 20.98%,
Abundance of B - 11 = 100 - 19.00 = 81%

15. Which among the following are essential constituents of Portland cement?

Correct Answer: (b) Silica, alumina, lime
Solution:Portland cement consists essentially of compounds of lime (calcium oxide, CaO) mixed with silica (silicon dioxide, SiO₂) and alumina (aluminium oxide, Al2O₃) The lime is obtained from a calcareous (lime-containing) raw material, and the other oxides are derived from an argillaceous (clayey) material.

16. Litmus, a well-known acid-base indicator, is derived from:

Correct Answer: (b) Lichens
Solution:Litmus is a natural indicator derived from lichens, specifically species like Roccella tinctorum and Lecanora tartarea. It's a mixture of organic compounds that turns red in acidic solutions and blue in alkaline solutions.

17. What is the oxidation state of Vanadium in V₂O₅?

Correct Answer: (d) +5
Solution:V₂O₅ = 0
2 × V + 5 × (- 2) = 0
2V - 10 = 0
V = 10/2
V = 5

18. Match List-I with List-II and select the correct answer using the code given below the Lists:

List-I (Allotrope of Carbon)List-II (Property)
A. Graphite1. Thinnest and strongest material
B. Diamond2. Hardest natural substance
C. Fullerene3. Very light and strong material
D. Graphene4. Soft and slippery material

Code:

Correct Answer: (a)
Solution:Graphite is soft and slippery material. Diamond is the hardest natural substance. Fullerene is very light and strong material. Graphene is thinest and strongest material.

19. Consider the following statements regarding the International Date Line:

1. It is roughly 180° meridian, which deviates slightly East and West to avoid land areas surrounded by the Atlantic Ocean.

2. The date to the East of this line is (24 hours) earlier than to the West.

Which of the statements given above is/are correct?

Correct Answer: (a) 1 only
Solution:IDL does not cut cross any country. The IDL is at 180 degrees longitude, not because it is just opposite to prime meridian but because it passes majorly through the oceans. The IDL is intentionally made so that it doesn't pass from any country's landmass, and the problem of two different dates in one country does not arise.

20. Which of the following statements regarding 'aurora' is/are correct?

1. The solar wind upon reaching the Earth's atmosphere is directed towards two magnetic poles and a colourful display of lights is seen in the night sky.

2. The particles interact with the different gases of the atmosphere and each gas glows with a particular colour.

3. In April 2023, aurora was captured in the night sky in India by the Indian Astronomical Observatory at Hanle, Ladakh.

Select the answer using the code given below:

Correct Answer: (d) 1, 2 and 3
Solution:(d)