Question
Which one of the following is used as catalyst in
hydrogenation of oil?Solution
1. Process Details: a. Nickel catalyst (Raney nickel) at 120-190°C b. Converts liquid oils → semi-solid fats (e.g., vanaspati) 2. Why Nickel? a. High surface area (150 m²/g) b. Selective for cis→trans conversion 3. Health Concern: a. Residual Ni limit: ≤1.5 ppm (FSSAI standards) b. Linked to cardiovascular diseases 4. Alternatives: a. Palladium (expensive) b. Enzymatic hydrogenation (emerging tech)
- Select the option that is related to the third term in the same way as the second term is related to first term and the sixth term is related to the fifth ...
Given set: 374, 635, 725
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ h _ i j _ _ ...
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related to...
158 : 491 :: 231 : ?
Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digi...
Select the option in which the words share the same relationship as that shared by the given pair of words.
Lion : Cub
- Select the set in which the numbers are related in the same way as are the numbers of the following set. (NOTE: Operations should be performed on the whole...
Select the related word/letters/number from the given alternatives.
7: 56 :: 5:?
34 is related to 155 by certain logic. Following the same logic, 49 is related to 168. To which of the following is 68 related, following the same logic?
