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The correct answer is Print and Fax.

Under the share tab(ribbon) of File Explorer in Windows 10, we find the following options:

• 1. Burn to Disc
• 2. Print 
• 3. Fax
• 4. Share
• 5. Zip

Hence, the correct answer is Print and Fax.

The tabs present in the ribbon toolbar of File Explorer in Win 10 are: 

• File
• Home
• Share
• View

The correct answer is Orkut.

• Orkut -
  • Orkut was a social networking service and it was operated by Google. 
  • This service was designed to maintain the new and old friends' relationships. 
  • This website was named after its founder Google employee Orkut Büyükkökten.
  • The Orkut website was closed by Google on September 30, 2014.​

• Yahoo -
  • It is an American web services provider and its headquarters is in Sunnyvale, California.
  • It was established by Jerry Yang and David Filo in January 1994.
  • It provides a web portal, search engine.​ 
• Google -
  • It was founded in September 1998 by Larry Page and Sergey Brin while.
  • It is a search engine provided by Google LLC.
  • Sundar Pichai was appointed CEO of Google, replacing Larry Page.​
• Bing -
  • It is a web search engine owned and operated by Microsoft. 
  • It provides a variety of search services, including web, video, image, and map search products. 

The Correct Answer is "(i) - (b), (ii) - (c), (iii) - (a)".

Internet Explorer :

• Internet Explorer is a series of graphical web browsers developed by Microsoft and are included in the Microsoft Windows line of operating systems, starting in 1995.
• It was first released as part of the add-on package Plus for Windows 95 that year.

Safari :

• Safari is a graphical web browser developed by Apple, based on the WebKit engine.
• First released on the desktop in 2003 with Mac OS X Panther, a mobile version has been bundled with iOS devices since the iPhone's introduction in 2007.
• Safari is the default browser on Apple devices.

SeaMonkey :

• Developed by Mozilla Foundation.
• SeaMonkey is a free and open-source Internet suite.
• It is the continuation of the former Mozilla Application Suite, based on the same source code, which itself grew out of Netscape Communicator and formed the base of Netscape 6 and Netscape 7.

The correct solution is MS-DOS.

• MS-DOS is not a GUI-based operating system.

• Early command line operating systems like MS-DOS and even some versions of Linux today has no GUI interface.

​

• The GUIs based operating systems are:
  • Microsoft Windows,
  • macOS,
  • The X Window System interfaces for desktop and laptop computers,
  • Android,
  • Apple's iOS,
  • Symbian,
  • BlackBerry OS,
  • Windows Phone/Windows 10 Mobile,
  • Tizen, WebOS, and
  • Firefox OS smartphone devices

The correct answer is “option 2”.

EXPLANATION:

The correct answer is "option 4".

Hyperthreading is an innovation in which a single core can work as having multiple virtual cores.

In other words, Hyperthreading increases parallelism by allowing multiple processes execution within a single core using multiple virtual cores.

A processor with 2 cores is a dual-core processor and with 4 cores are quad-core processors.

EXPLANATION:

Physical CPU can be considered as the processor, Logical CPU is the core inside processors & Hyperthreading involves virtual cores inside cores.

Hence, the correct answer is "option 4".

Never confuse between Multithreading and Hyperthreading.

• Multithreading means multiple threads involves inside the operating system to increase process execution.
• Hyperthreading involves multiple virtual cores inside the processor to increase processing speed.

The correct answer is Google.

• Internet Explorer is a series of graphical web browsers and included in the Microsoft Windows line of operating systems.
• It was developed by Microsoft and started in 1995.
• Mozilla Firefox is a web browser developed by the Mozilla foundation. 
• Opera Browser is a web browser developed by Opera Software initially on 10th April 1995.
• A gaming browser called Opera GX was launched on 11 June 2019

• Some browsers of internet surfing are following
  • Google Chrome, Opera, Mozilla Firefox, Pale Moon, Microsoft Edge, Apple Safari, Sea monkey, Netscape Browser, etc.
• Google
  • ​Google is a search engine on World Wide Web. 
  • It is owned by Google Inc. with its headquarters located in Silicon Valley, California.

The correct answer is 2005.

• Right to Information is an act of the Parliament that sets out the rules and procedures regarding citizens' right to information.
• Right to Information Act, 2005 replaced the former Freedom of Information Act, 2002.
• Under the RTI Act, any citizen of India may request information from a public authority which is required to reply within thirty days.

• Some major sections of the RTI Act, 2005
  • Section 8 (1) mentions exemptions against furnishing information under RTI Act.
  • Section 2j - Control of information under public authority
  • Section 4 - Suo moto disclosure of information by public authority

• The authorities under the Right to Information Act 2005 are called public authorities.
• The RTI Bill was passed by the Parliament on 15 June 2005 and the bill came into force with effect from 12 October 2005.
• Right to Information has proven to be very useful but is counteracted by the Whistle Blowers Protection Act, 2011.
• In the first ten years of the first act over 17,500,000 applications had been filed.

A catalyst is a substance which  Decreases the energy of activation.

Physical adsorption Involues weak interaction between adsorbent and adsorbate

The colloidal particles have diameter ranging from 1 to 100 nm

Let's find the Molar mass of Carbon=12. 

Molar mass of Hydrogen=1. 

Molar mass of Oxygen=16. 

Mass of CH₂O=12+2(1)+16=30.

Molecular weight of compound given is 180. 

So, the molecular weight is 180/30 ​ =6. 

⇒ Molecular formula of compound is C₆H₁₂O₆ ​ .

Due to d5 configuration, metalic bonds are weak. d5 orbital is half filled as a result 3d electrons are more tightly held by the nucleus and this reduces the de-localization of electrons resulting in weaker metallic bonding.

1. (b) tri

2. (d) tetra

3. (d) simultaneous

When 4 g of hydrogen and 32g of oxygen are combined 36 g of water \(\frac{37}{18}\) = 2 mol 

5g H + 32 gO → 37g H₂O

No of moles in 3 7 g of water = \(\frac{37}{18}\) = 2.055 mol

a. Number of mol molecules =\(\frac{Mass}{GMM}\) = \(\frac{56}{28}\) = 2

b. Number of mol molecules = \(\frac{90}{18}\) = 5

Correct option: both a and b

2 unpaired electrons are present in ground state.

a. 2 mol 

b. Amount of CO₂  produced by the combustion of 16g CH₄ = 44g 

Amount of CO₂  produced by the combustion of 1 gm CH₄ = \(\frac{44}{16}\) g

Amount of CO₂  produced by the combustion of 100g CH₄ = \(\frac{44}{16}\) x 100g

a. Mass of 20 mol NaCl = 20 × 58.5 = 1170g 

1170 g NaCl can be made into 11 packets with 100g each. 

b. Remaining NaCl = 1170 – 1100 = 70g

a. GMM of ammonia (NH₃) = 14 + 3 × 1 = 17g = 1GMM

b. Number of mole molecules = \(\frac{Mass}{GMM}\) = \(\frac{170}{17}\) = 10

c. Number Of molecules = Mole × 6.022 × 10²³ 

= 10 × 6.022 x 10²³

Number of moles = \(\frac{Given\,mass}{GMM}\) = \(\frac{170}{17}\) = 10 mole

Volume at STP = mole × 22.4 L = 10 × 22.4 L = 224 L

In excited state C can show tetra valency.

a. 67.2 l 

b. 132 g 

c. 1/4. 

d. 4g 

e. 11.2 L 

f. 1/2.

1. 32 g

2. 1 GMM

3. 6.022 x 10²³ oxygen molecules

4. 1 GMM

5. 6.022 × 10²³ N₂ , molecules

6. 1 GMM

7. 6.022 × 10²³ H₂O Molecules

8. \(\frac{96}{32}\) = 3 GMM

a. 6.022 x 10²³ 

b. 6.022 x 10²³ 

c. 71 g 

d. 14 g

Molecular mass of glucose 

= 6 × 12 + 12 × 1 + 6 × 16 = 72 + 12 + 96 = 180 g 

Molecular mass of sulphuric acid 

2 × 1+ 1 × 32 + 4 × 16 = 2 + 32 + 64 = 98 g

The correct option is (1).

Explanation:

Effective number of A = 4 & effective number of B = 4 x 1/2 = 2 & effective number of O = 8 & formula is A₄B₂O₈ or A₂BO₄.

Correct answer is: (A) Hierarchical relationship between groups and components

Answer: a) Resin

Synthetic rubber paint is prepared from resins. These are chemically resistant and offer protection against heavy rain, sunlight.

Reduce: means to use a material/commodity in lesser quantity, e.g electricity and water 

Recycle: means a material that is used once is collected and sent back to a manufacturer so that they can make some other useful material from it: 

e.g., plastic cups and buckets, glass tumbler, paper, metal objects 

Reuse: means using a thing over and over again instead of throwing it away. It does not involve the process of recycling either in small or large scale.

e.g., used envelopes, plastic carry bags, bottles of jam.

RECOVER is to convert waste into resources (such as electricity, heat, compost and fuel) through thermal and biological means. Resource Recovery occurs after reduce, reuse and recycle have been attempted. 

Residual: The difference between results obtained by observation and by computation from a formula or between the mean of several observations and any one of them.

Robert Heinrich Hermann Koch is considered as the founder of modem bacteriology. He identified the causal organism for Anthrax, Cholera and Tuberculosis. He proved experimental evidence for the concept of infection (Koch’s postulates).

(1) What are the birth control methods ? 

(2) What is the use of birth control methods ? 

(3) Are there any side effects due to birth control methods ? 

(4) Name some birth control methods.

We know that insects help in pollination. To increase the population of insects we have to follow the following steps : 

(1) Avoiding indiscriminate use of pesticides. Instead of this we can adopt biological controlling methods for pests. 

(2) To attract the insects, cultivation flowering plants on ridges and canals of the fields.

Slogans on the prevention of HIV / AIDS : 

(1) Give your child love, laughter and peace, not AIDS. 

(2) A step against AIDS – Saves thousand lives.

(3) AID's don't attack from a hug or a handshake or sharing a meal with a friend. 

(4) Enjoy being the messenger of nature, enlighten the public about HIV / AIDS. 

(5) Prevention is better than cure.

Cray fish belongs to arthropoda. Devil fish is a chordate , jellyfish is a coelentrate , and starfish is an echinoderm .

In unicellular organisms, reproduction occurs by the division of the entire cell. The modes of reproduction in unicellular organisms can be fission, budding, etc. whereas in multicellular organisms, specialised reproductive organs are present. Therefore, they can reproduce by complex reproductive methods such as vegetative propagation, spore formation, etc. In more complex multicellular organisms such as human beings and plants, the mode of reproduction is sexual reproduction.

(a) The Governor of state is appointed by the President for the period of five years.

(b) In case of breakdown of constitutional machinery in the state, the President with the consent of Governor can declare constitutional emergency in the state. It results in dissolution or suspension of Legislative Assembly of that state. The Council of Ministers of the state is also dismissed. President takes the control of state administration in his own hands. It means that state’s administration is run by central government for short time.

Practically, the President transfers actual powers to Governor to run state administration. All powers of Legislature temporarily goes to central government.

The correct option: (a) 1 only

(c) President can suspend the normal allocation of revenues

(b)   Punjab.

(b) Part XIV, Chapter I, Articles 308-323

(b) by each House of Parliament

The correct option: (d) 3 1 2

The proclamation of emergency at the first instance can be restricted to 6 months.

The correct option: (d) I and IV

National Emergency has been declared so far thrice.

(d) when the decision of Union Cabinet for the issuance of such proclamation has been communicated to him in writing