Question Discussion & Solution

The mirror image are given bellow

 Hence, option 2 is the correct answer.

The pattern followed here is:

Hence, '41' is the correct answer.

The correct answer is Fructose.

Key Points

•  Fructose
  • It is naturally occurring sugar.
  • It is the sweetest sugar.
  • It is a 'monosaccharide', meaning the simplest form of sugar, which means it cannot be broken down into more basic sugar units.
  • Other common examples of monosaccharides are glucose and galactose.
  • The chemical formula of fructose is C₆H₁₂O₆.

Additional Information

• Maltose
  • It is also a sweet sugar which is also known as maltitol sugar.
  • It is mostly found in honey.
  • Its molecular formula is C₁₂H₂₂O₁₁.
• Glucose
  • It is the most abundant monosaccharide, a carbohydrate sub-category.
  • During photosynthesis, glucose is primarily produced by plants and most algae from water and carbon dioxide, using energy from sunlight, where it is used to create the most abundant carbohydrate cellulose in cell walls.
  • The chemical formula of glucose is C₆H₁₂O₆.
• Sucrose
  • It is crystallized white sugar produced by the sugar cane plant and can be found in households and foods worldwide.
  • The formulae for sucrose is C₁₂H₂₂O₁₁.
  • It is a disaccharide so when we hydrolyse it we will get one molecule of glucose and another molecule of fructose.
  • It is also known as table sugar.
  • The formulae for sucrose is C₁₂H₂₂O₁₁.

Concept:

• The laws dealing with ideal gases naturally called ideal gas laws, and the laws determined in the seventeenth century by Boyle's observational work and in the eighteenth century by Charles.
• The Boyles Law states that the gas pressure is inversely proportional to the gas volume for a given mass of gas stored at a constant temperature.
• Charles Law states that the gas volume is directly proportional to the gas temperature for a given fixed mass of gas stored at a constant pressure. 
• An ideal gas is a gas that follows the equation:

PV = nRT at all temperatures and pressure, where P = Pressure of the ideal gas. V = Volume of the ideal gas n = Amount of ideal gas measured in terms of moles 

R = Universal gas constant T = Temperature

Mole Concept -

•  The quantity one mole of a substance signifies 6.022 × 1023 number of particles of that substance which may be atoms, molecules, or ions.
• The quantity is a universal constant like Dozen, Gross, etc., and is known as Avogadro number, denoted by NA. after the scientist Amedeo Avogadro.
• Examples- In one mole of H2, there are 6.022 × 1023 molecules of hydrogen, and the number of atoms is 2 × 6.022 × 1023, as one molecule of hydrogen contains two-atom each.
• The mass of one mole of a substance is called its Molar Mass (M) or Atomic mass expressed in grams.
• The volume occupied by a mole of gas is 22.4 L at NTP, called its Molar Volume.
• The no. of moles (n) is calculated as =

The number of particles / Avogadro’s number.

To summarise, we can say, 

Calculation:

• The molar mass of 1 mole of H₂SO₄ is =

2 × 1 + 32 + 4 × 16 = 98g

• The molar mass of 1 mole of Silver, Ag is its molecular mass 108g.
• The molar mass of CO₂ is = 12 + 2× 16 = 44g.
• 44g of CO₂ means one mole.
• 1 mole of Oxygen weighs 16 + 16 = 32g.
• Hence, the highest mass is of 1 mole of Ag.

The correct answer is Single-User Operating System.

Important Points

• Single-User Operating System
  • Performs a single task for Single-user.
  • This operating system is designed to manage the computer so that one user can effectively do one thing at a time.
  • Examples include Microsoft Windows.

Additional Information

• The different types of Operating System:
• Batch Operating System
  • There is no direct communication between the computer and the OS.
  • There is an intermediate, the Operator.
  • The operator distributes the work into batches.
• Real-Time Operating System
  • The processing time is very small between the user’s command and the output such that there is no operator.
• Time-Sharing Operating System
  • Multiple people at various computers can use a program at the same time.
• Distributed Operating System
  • When two or more systems are connected to each other and one can open each other's files.
• Embedded Operating System
  • These special Operating systems are built into larger systems.
  • They are limited to single specific functions like an ATM.
• Network Operating System
  • They have one main server which is connected to other client servers.
  • It provides a secure operating system for working with multiple users.