Question Discussion & Solution

The correct answer is Brown Loam Soil.

Key Points

• Brown Loam Soil-
  • This soil is found mostly in the central-eastern part of Rajasthan.
  • This soil is found mostly in Bhilwara, Ajmer, Tonk, Sawai Madhopur, districts.
  • This soil is also found in Banas and Luni Basin.
  • This soil is suitable for Groundnut crops.

Additional Information

• Black Soil-
  • This soil is found mostly in the southeastern parts of the Rajasthan.
  • This soil is deficient in lime, phosphoric acid, and humus.
  • This soil is rich in Potash and calcium.
  • Cotton is mostly grown in this soil.
  • This soil is known as Regur soil. 
• Red and Black Soil-
  • This soil is formed from a mixture of Malwa's plateau black soil and Southern Aravali's red soil.
  • This soil is found in Dungarpur, Banswara, Rajsamand, Udaipur, Bhilwara, Chittorgarh districts.
  • This soil is deficient in Phosphate, Nitrogen, Calcium, and Organic materials.
  • This soil is also found in Chambal and Mahi Basin.
  • Cotton and Maize are mostly grown crops on this soil.
• Red Loam Soil-
  • This soil is found in the southern part of Rajasthan.
  • This soil is found in Chittorgarh, Banswara, and Dungarpur districts.
  • This Soil is found in Chhapan's Plain.
  • This soil is deficient in Nitrogen, Calcium, and Phosphorous.
  • This soil is rich in Iron oxide, so this has red color.
  • This soil has the capacity for holding humidity for a long time.
  • This soil doesn't require much rain for farming.

Concept

Size of element:

• The atomic size of an element is determined by the atomic radius of an element.
• Atomic radius is the distance between the center of an atom to its outermost (valence) shell having electrons.
• The atomic size of any element is mentioned in form of Atomic radius.
• Unit of Atomic radius is Amstrong (A^o).

Valency of an element:

• Valency is the combining capacity of an atom of an element.
• It is otherwise the valence electrons an atom uses to form a chemical bond.

The molar mass of the element:

• It is defined as the mass of one atom of an element.
• The unit is g/mol.
• For all substances, the molar mass of in g/mol is numerically equal to the formula mass in atomic mass units.

Explanation:

• The maximum number of univalent atoms that may combine with an atom of the element is the Valency.
• The valency of an element is always an integer.
• With regard to covalent compounds, the term valency describes the number of bonds usually formed by each element.
• In ionic compounds, often, the number of positive or negative charges that appear on the atom in its ion helps to state its valency.
• The chemical behavior is largely influenced by the valency of the element.

Hence, Valency of an element is the property that determines an element's chemical behavior.

The correct answer is CPU.

Key Points

• CPU (Central Processing Unit) -
  • It is the main part of the computer, it can also be called the 'brain of the computer'.
  • Its function is to process the inputs and instructions coming on the computer. 
  • This unit of computer performs arithmetic, logical, control functions, input functions, and output functions. 
  • It is also commonly known as a processor.

Additional Information

• Motherboard -
  • It is a printed circuit board installed in most electronic plants such as laptops, computers, etc.
  • It is also called the mainboard or system board.
  • The main part of the motherboard is its chipset.
• RAM (Random Access Memory) -
  • This is a type of memory, we also know it by the name of Primary Memory.
  • There are two types of RAM. Static RAM and Dynamic RAM

The correct answer is Chhattisgarh.

• Mahanadi river originates from the mountainous terrain of Chhattisgarh.

Key Points

• It originates from many mountain rivers with its origin water located in the Dhamtari district of Chhattisgarh.
• The river originates from an extension of the Eastern Ghats.
• It flows in Odisha where it joins the Bay of Bengal.
• Other names of Mahanadi are Kanaknandini, Chitrapalal, Mahasweta, Nilotpala etc.
• Hirakud Dam is built on the Mahanadi. It is the longest earthen dam in the world.​

The correct answer is Desert Climate.

Key Points

• According to Tharnwet, Rajasthan has four climate region-
  •  CA'w-
    • This climate region is similar to the subhumid/arid and wet-dry region.
    • Rajasthan's Udaipur, Dungarpur, Banswara, Kota, Baran, Jhalawar districts come in this region.
    • Sawana and Monsoon type flora is found in this region.
  • DA'w-
    • This climate region is similar to the semi-arid/tropical-wet climate region.
    • Rajasthan's  Barmer, Jodhpur, Churu, Jalore, Pali, Ajmer, Bundi, Sawai Madhopur districts come in this region.
    • Semi-desert flora is found in this region.
  • DB'w-
    • This climate region is similar to the mid thermal semi-dry/mixed climate region.
    • Rajasthan's Ganganagar, Hanumangarh, Bikaner, Churu districts come in this region.
    • Thorny bushes and semi-desert flora is found in this region.
  • EA'd-
    • This climate region is similar to the Desert climate region.
    • Rajasthan's Jaisalmer, Western Jodhpur, South-West Bikaner, North-West Barmer come in this region.
    • Desert flora is found in this region