Question Discussion & Solution

Eagle, Bird, Crocodile

All Eagle is the Bird and Crocodile is the reptile. 

So,  Venn diagram given bellow-

Hence, option 4 is the correct answer.

The correct answer is carbon.

Key Points

• A fullerene is an allotrope of carbon whose molecule consists of carbon atoms connected by single and double bonds so as to form a closed or partially closed mesh, with fused rings of five to seven atoms.
  • The molecule may be a hollow sphere, ellipsoid, tube, or many other shapes and sizes.
• Various allotropes of carbon are diamond, graphite, lonsdaleite, fullerene, C-540, C-70, amorphous carbon, carbon nanotube.
• Diamond and crystalline silicon are isomorphous because they both have a three-dimensional tetrahedral structure.
• Allotropy, the existence of a chemical element in two or more forms, which may differ in the arrangement of atoms in crystalline solids or in the occurrence of molecules that contain different numbers of atoms.

Additional Information

• When an element exists in more than one crystalline form, those forms are called allotropes; the two most common allotropes of carbon are diamond and graphite.
  • One of the allotropic form of a carbon is a fullerene in which “carbon atoms” are “arranged in a sphere”.
  • Each sphere has 60 carbon atoms and each carbon atom is linked by a single covalent.
  • The fullerene is considered as purest allotrope of “carbon” because they have “smooth structure” without having dangling bonds.

The correct answer is the Graphical User Interface.

Important Points

• Graphical User Interface (GUI) 
  • The graphical user interface is used by most of the commercially popular computer operating systems.
  • A Graphical User Interface (GUI) allows you to enter commands by pointing and clicking at objects that appear on the screen.
  • It consists of picture-like items (eg. icons and arrows).
  • In most operating systems, the primary user interface is graphical.

Key Points

• Some popular, modern graphical user interface examples include:
  • Microsoft Windows,
  • macOS, Ubuntu Unity,
  • GNOME Shell for desktop environments, and
  • Android,
  • Apple's iOS,
  • BlackBerry OS,
  • Windows 10 Mobile,
  • Palm OS-WebOS, and
  • Firefox OS for smartphones.​

An ohmmeter is an electrical instrument that measures electrical resistance. Similarly, barometer is a scientific instrument that is used to measure air pressure in a certain environment.

The correct answer is Bundi, Udaipur, Pratapgarh and Banswara

• The correct location of the districts from north to south direction in Rajasthan is Banswara, Pratapgarh, Udaipur and Bundi.

Key Points

Additional Information

• Banswara:
  • Banswara is known as the Cherrapunji of Rajasthan.
  • It is also known as ‘City of Hundred Islands.
  • The state of Banswara was established by Jagmal Singh.
  • It shares a border with Pratapgarh, Dungarpur districts, Madhya Pradesh and Gujarat.
• Pratapgarh:
  • Maharana Kumbha was the ruler of Mewar with capital at Chittorgarh.
  • The district is surrounded by Udaipur, Banswara, Chittorgarh, Ratlam, Mandsaur and Neemuch districts of Madhya Pradesh.
• Udaipur:
  • It is sometimes referred ‘Venice of the East.
  • It is bordered by Rajsamand, Chittorgarh & Pratapgarh, Banswara, Dungarpur, Sirohi and Pali.
• Bundi:
  • The district derived its name from a former Meena tribe chief called Bunda Meena. 
  • The district is bordered by Tonk, Sawai-Madhopur, Kota, Chittorgarh, and Bhilwara.