Question Discussion & Solution

Valency is the combining power of an element. Elements in the same group of the periodic table have the same valency.

Key Points

• Valency is the no of electron that looses, shared or gain to achieve stability or we can say to complete it outer most shell. 
• If any element has valence electron (electrons present in outer most shell) less than 4
  • ​​Valency = no of valance electron (valence electron<4)
• If any element has valence electron ​more than 4
  • ​​Valency = 8 - no of valance electron (valence electron>4)

​For Lithium:

• Li(Z=3) Electronic configuration = 2, 1
  • Valency = no of valance electron  = 1

​Hence, we can conclude that 1 is the valency of Lithium.

The correct answer is ​Laser Printer.

Important Points

• Hard copy output devices
  • Hard copy output devices are devices that provide output on printed paper or other permanent media that is human readable. 
  • Examples of devices that produce hard copy are printers, plotters.

Key Points

• Laser printers 
  • Laser printers are machines that melt toner powder onto paper to create a print. 
  • Laser printers are more expensive than inkjet printers upfront and use pricier toner cartridges.
  • It is a more economical option in the long run with its overall lower cost per page.
  • Laser printers have faster print speeds.
  • A semiconductor diode laser is currently used in laser printers as the light source.

Additional Information

• Visual Display Terminal
  • The term VDT refers to a type of equipment for visual display, such as computer screens.
• Projector
  • ​A projector or image projector is an optical device that projects an image onto a surface, commonly a projection screen.
• Monitor
  • ​A computer monitor is an output device that displays information in pictorial form.
  • A monitor usually comprises the visual display, circuitry and power supply.

Letters are replaced by their place values as in the general alphabetical series.

Similarly,

Hence, answer is '14935'.

The correct answer is New Incognito Window.

Key Points

• Incognito Window
  • ​Private browsing is a privacy feature in some web browsers.
  • When operating in such a mode, the browser creates a temporary session that is isolated from the browser's main session and user data.
  • Browse in private
    • Switch on computer > open the Chrome app.
    • To the right of the address bar, tap More> New Incognito tab.
    • A new window appears.
    • In the top left, check for the Incognito icon.

Additional Information

• New tab and New window
  • The big difference is that browser tabs are easier for users to manage than browser windows.
  • When a new window opens, it covers the user's earlier window.
  • But when a new tab opens, the user can still see their earlier tab at the top.
• New Window
  • ​Open File Explorer (Win+X)> Right-click or press and hold on one or more selected folder libraries, or drives in File Explorer> click/tap on Open in a new window.
• New Tab ​
  • New Tab is a button on the tab bar which easily creates a new file. 
• ​Bookmark
  • ​A bookmark is a saved shortcut that directs your browser to a specific webpage.
  • It stores the title, URL, and favicon of the corresponding page.

The answer is Chief Minister.

• The governor acts as the nominal head whereas the real power lies with the Chief ministers of the states and his/her councils of ministers.

Important Points

• Chief Minister:
  • In the Parliamentary system of government, Chief Minister is the real executive authority whereas the Governor is the nominal executive authority.
  • The Governor is the head of the state while the Chief Minister is the head of the government.
  • Thus the position of the Chief Minister at the state level is analogous to the position of the Prime Minister at the Centre.
  • Appointment of Chief Minister:
    • The Constitution does not contain any specific procedure for the selection and appointment of the Chief Minister.
    • Article 164 only says that the Chief Minister shall be appointed by the governor.
    • In accordance with the convections of the parliamentary system of government, the governor has to appoint the leader of the majority party in the state legislative assembly as the Chief Minister.
    • The Constitution does not require that a person must prove his majority in the legislative assembly before he is appointed as the Chief Minister.
    • A person who is not a member of the state legislature can be appointed as Chief Minister for six months, within which time, he should be elected to the state legislature, failing which he ceases to be the Chief Minister.
  • Term of the Chief Minister:
    • The term of the Chief Minister is not fixed and he holds office during the pleasure of the governor.
    • He cannot be dismissed by the governor as long as he enjoys the majority support in the legislative assembly.
  • ​Articles Related to Chief Minister at a glance:

Additional Information

• President:
  • The President is the head of the Indian State.
  • He is the first citizen of India and acts as the symbol of unity, integrity, and solidarity of the nation.
  • The President has been made only a nominal executive, the real executive being the council of ministers headed by the prime minister.

• Prime Minister:
  • In the Parliamentary system of government, Prime Minister is the real executive authority whereas the President is the nominal executive authority.
  • The President is the head of the State while Prime Minister is the head of the government.