Question Discussion & Solution

Here the pattern is,

The correct answer is Silver.

Key Points

• Gold
  • It is one of the softest metals, and this quality makes it easier to design it in various jewelry designs.
  • It is tough making 24 karat gold jewelry. Other metals have to be added to it to increase its durability and strength.
  • If you wish to know what is 24 karat gold, you must understand that 24 karat gold is the purest form of this yellow metal.
  • Although 24 karat is pure gold, a jewelry piece made up of this purity is not solid and flexible enough.
  • When creating and crafting beautiful, intricately designed, and patterned gold jewelry, the metal needs to be added with other alloys to lend it the necessary strength.
  • The metals usually added to gold metal are zinc, nickel, silver, copper, etc. Hence, Option 3 is correct.
  • This is because when gold melts its state will change into a liquid.
  • Gold will like water so it flows and it will become difficult to mold.
  • So copper is added to gold which is there in the liquid state, so it will harden gold a little bit to prevent it from flowing which will be easy to mold gold to make ornaments.

Important Points

• Silver
  • It is a chemical element with the symbol Ag and atomic number 47.
  • A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.

Additional Information

• Zinc
  • It is a chemical element with the symbol Zn and atomic number 30.
  • Zinc is a slightly brittle metal at room temperature and has a silvery-greyish appearance when oxidation is removed.
  • It is the first element in group 12 of the periodic table.
• Lead
  • It is a chemical element with the symbol Pb and atomic number 82.
  • It is a heavy metal that is denser than most common materials.
  • Lead is soft and malleable, and also has a relatively low melting point.
  • When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air.
• Tin
  • It is a chemical element with the symbol Sn and the atomic number 50.
  • Tin is a silvery metal that characteristically has a faint yellow hue.
  • Tin is soft enough to be cut with little force.

The correct answer is 30 October 1974.

• Rajasthan State Mines & Minerals Ltd. was established on 30 October 1974.

Key Points

• The prime objective of RSMML is to achieve cost-effective technological innovations in the mining of minerals and to diversify into mineral-based downstream projects
• The major activities of the company have been divided into four parts called Strategic Business Units & Profit Centres (SBU & PC) under the direct control of the corporate office situated at Udaipur. 
• The four SBU & PC are as follow
  • SBU & PC Rock phosphate, Udaipur
  • SBU & PC Gypsum, Bikaner
  • SBU & PC Limestone, Jodhpur
  • SBU & PC Lignite, Jaipur

The correct answer is constitutional authority.

Key Points

• The State Election Commission is the Constitutional body responsible for conducting and supervising elections to the local bodies in the State.
• The State Election Commission of Rajasthan was constituted in July 1994 under Article 243K of the Constitution of India.
• The State Election Commission of Rajasthan is a single member Committee headed by the State Election Commissioner.
• It has a Secretary who is also the Chief Electoral Officer for the State.
• The Commission discharges its Constitutional duty by way of preparing electoral rolls and holding elections for Panchayati Raj Institutions as well as for Municipal bodies.
• Elections to Panchayati Raj Institutions are being held in Rajasthan since 1960. The first election was conducted in 1960 by the Panchayat Department.
• Elections to Municipal bodies are being held in Rajasthan since 1960 by the local self department.
• Praveen Gupta, IAS is the present Chief Electoral Officer for the Rajasthan State.

Additional Information

• There are basically two types of bodies,
  • Constitutional Bodies - Those bodies which are mentioned in the constitution of India are known as Constitutional Bodies, For example, Finance commission (Article 280), Election Commission (Article 324), UPSC & SPSC (Article 315).
  • Extra Constitutional Bodies - Those bodies which are not mentioned in the constitution of India but are established by our parliament. 
    • They are further divided into two categories,
      • Statutory Bodies - Those bodies are made by law through the parliament, and they are autonomous in their function, such as CBI, SSC, NHRC, SEBI etc.
      • Non-Statutory Bodies - Those bodies which run through cabinet resolutions are known as Non-Statutory Bodies. For example, NITI Aayog, NDC etc.

As, ‘moon’ is a ‘satellite’ similarly, ‘earth’ is a ‘planet’.