Question Discussion & Solution

The correct answer is ​Sodium benzoate.

Key Points

• Sodium benzoate is a preservative that is most widely used in acidic foods such as salad dressings, carbonated drinks, jams and fruit juices, pickles, condiments, and yoghurt toppings.
• Food preservation is a method to protect food from unwanted microbial growth and is done to preserve food for a longer time.
• Sodium benzoate is a widely used preservative found in many foods and soft drinks to prolong shelf life.
• It is an odourless, crystalline powder made by combining benzoic acid and sodium hydroxide.
• Benzoic acid is a good preservative on its own, and combining it with sodium hydroxide helps it dissolve in products.
• Sodium benzoate does not occur naturally, but benzoic acid is found in many plants, including cinnamon, cloves, tomatoes, berries, plums, apples, and cranberries.

Additional Information

Let Rahul’s age be x.

Let Rita’s age be y.

Let Ekta’s age be z.

⇒ x = y + 3

⇒ y = 4z – 3

⇒ x = 4z – 3 + 3

⇒ x = 4z

⇒ x/z = 4

⇒ x ∶ z = 4 ∶ 1

The correct answer is 1 i.e. propanal.

Concept:

IUPAC nomenclature:

• A systematic method of naming organic compounds.
• Naming is based on their structures.
• It is devised by the International Union of Pure and Applied chemistry.
• Many rules are followed while naming the compounds and it is different for different functional groups.
• The rules are known as IUPAC rules.

Explanation:

• This compound contains 3 carbon atoms, so its parent alkane is propane.
• It also contains an aldehyde group (-CHO-) group which is indicated by using 'al' as suffix or ending.
• So by replacing the last 'e' of butane with 'al', the name becomes propanal.
• Thus, the IUPAC name of the compound CH3CH2CHO is propanal.
• The common name of propanal is Propionaldehyde.

​Additional Information

• The chart for priority order and suffix name is given below:

In this question shows that Lotus, Rose and Lily are kind of flower. So Marigold is also kind of flower but apple is the fruit, Red is color and flower is flower.

So most closely word is Marigold.

Hence, option 2 is the correct answer.

The correct answer is Sitamata Wildlife Sanctuary.

• The 'Flying Squirrel' is found in Sitamata Wildlife Sanctuary located in Pratapgarh and Chittaurgarh districts.

Important Points

• It does not actually fly: It glides from one tree to another around sunset in the Arampura forest,
• It's nocturnal and therefore it hides during the daytime in its hollow in a Mahua tree.
• Flying Squirrel: 

Key Points

• Sita Mata Wildlife Sanctuary was declared as a protected forest area by the Government of Rajasthan in 1979.
  • It is a dense forest with about 40% of the total land area of the districts Pratapgarh and Chittorgarh.
  • The confluence of three different formations —
    • Malwa Plateau,
    • Vindhyachal Hills
    • Aravali mountain ranges.

Additional Information

• Mukandara Hills
  • It is a national park in Rajasthan,
  • Established in 2004 and consists of three wildlife sanctuaries:
    • Darrah Wildlife Sanctuary.
    • National Chambal Sanctuary.
    • Jawahar Sagar Wildlife Sanctuary.
• Ranthambore Tiger Reserve
  • ​National Park and Tiger Reserve in Rajasthan
  • It is bounded to the north by the Banas River and to the south by the Chambal River.
  • It is named after the historic Ranthambore Fort, which lies within the park.
• Sariska Tiger Reserve
  • National Park and Tiger Reserve in Alwar district, Rajasthan.
  • Important biodiversity area in the Northern Aravalli leopard and wildlife corridor.