Bissoy.com
Doctors Medicines MCQs Q&A

What property of dendralysts accounts for its easy isolation from a reaction mixture?

What property of dendralysts accounts for its easy isolation from a reaction mixture? Correct Answer Large size

Dendralysts are dendrimers that possess catalytic sites at their terminal groups. These molecules can be easily separated from a mixture after the reaction, owing to their large size. This would not have been possible if the dendrimer molecules were smaller or had solid polymer supports.

Related Questions

oil and kerosene are present in ratio of 5 : 7 in a liquid. Few litres of mixture of mixture are replaced with petrol. Ratio of oil : kerosene: petrol is 35 : 49 : 18 respectively. Amount of oil removed from mixture is 21 litres less than that of petrol added to the mixture. And amount of oil removed is 6 litres less than that of difference mentioned. Petrol is replacing the mixture removed hence; quantity of mixture is not changing. What is the difference between quantity of kerosene in old mixture and amount of oil in new mixture?
The question given below consists of a statement, followed by three arguments I, II and III. You have to decide which of the arguments is/are ‘strong’ arguments is/are ‘weak’ arguments and accordingly choose your answer from the alternatives given below each question. Statement: For users, Facebook's revelation of a data breach that gave attackers access to 50 million accounts raises an important question: What happens next? For the owners of the affected accounts, and of another 40 million that Facebook considered at risk, the first order of business may be a simple one: sign back into the app. Facebook logged everyone out of all 90 million accounts in order to reset digital keys the hackers had stolen - keys normally used to keep users logged in, but which could also give outsiders full control of the compromised accounts.  Which of the following points do not capture the negligence of Facebook in the most appropriate manner? Arguments: I. What Facebook knows so far is that hackers got access to the 50 million accounts by exploiting three distinct bugs in Facebook's code that allowed them to steal those digital keys, technically known as ‘access tokens’. The company says it has fixed the bugs.  II. The hack is the latest setback for Facebook during a tumultuous year of security problems and privacy issues . So far, though, none of these issues have significantly shaken the confidence of the company's 2 billion global users.  III. One of the bugs was more than a year old and affected how the ‘View As’ feature interacted with Facebook's video uploading feature for posting ‘happy birthday’ messages. But it wasn't until mid-September that Facebook noticed an uptick in unusual activity, and not until this week that it learned of the attack.
What is the quantity of mixture A in the final mixture when mixed with mixture B in ratio 3 : 2. l. The mixture A is 25% more than the total quantity mixture of B ll. The total quantity of mixture B in the original mixture is 20 kg
In a mixture of ghee and dalda, the ratio of ghee to dalda is 5 : a. When 5 litres of ghee were added in the mixture then, the concentration of dalda becomes 50% but when 2 litres of dalda were added in the mixture then the concentration of ghee becomes 40%.  Quantity I : ghee will be what part of the mixture when, 10 litres of ghee were added in the original mixture? Quantity II : Dalda will be what part of the mixture when 3 litres of dalda were added in the original mixture?
Mixture A and Mixture B contain consist of 40 liters and 60 liters of mixtures of liquids X and Y in different proportions. Quantity of liquid X in mixture A is 10 liter less than the quantity of liquid X in mixture B. The total quantity of liquid Y in both the mixtures is 40 liters. If 30% of liquid is taken from mixture A and put into mixture B, then what will be the ratio of liquid X to liquid Y in mixture B?
The following question has three statements. Study the question and the statements and decide which of the statement(s) is necessary to answer the question. 6 litres of mixture A and 4 litres of mixture B are mixed to form a new mixture C. Find the amount of water in the new mixture. I) The new mixture had alcohol and water in the ratio 7 ∶ 5. II) Mixture A had alcohol and water in the ratio 5 ∶ 4. III) Mixture B had alcohol and water in the ratio 5 ∶ 3.
Following table shows total number of Employees of XYZ Ltd. in 5 different Cities [A, B, C, D and E] and ratio of number of employees working in HR, Accounts and Production departments respectively. City Total Employees HR : Accounts : Production A 240 1 : 2 : 3 B 450 7 : 1 : 1 C 360 5 : 4 : 3 D 180 2 : 5 : 3 E 330 6 : 4 : 1   Note: Employees works in only the above given departments in the each city. Find the total number of employees of accounts department in city E, employees of accounts department in city A and employees of production department in city B?
Consider the following statements : a. In October 1976, an organisation named Controller General of Accounts was set up. b. The Controller General of Accounts prepares a condensed form of the Appropriation Accounts and Financial Accounts of the Union Government. c. The appropriation audit and regulatory audit are the statutory duties of the CGA. Which of the statement/s given above is/are incorrect?
Which of the following statements are correct? a) The chairman of the Public Accounts Committee is always chosen from the ruling party. b) The chairman of the Public Accounts Committee is from the opposition party. c) The chief function of the Public Accounts Committee is to examine the report of CAG. d) The chairman of the Public Accounts Committee is appointed by the Vice President of India.
Following are the conditions to select a manager for accounts in a company: 1, The candidate must be at least 30 years and not more than 40 years as on 1st January 2019. 2. Be a commerce graduate with at least 55% aggregate marks 3. Have experience of at least 10 years of accounts experience out of which at least 3 years in a managerial position in an organization. 4, Have secured at least 60% in the recruitment process. At 2 above. but has secured at least 50% aggregate marks in graduation and has secured 80% in there cruitment process, he can be referred to VP-accounts. In each question below the candidate details are provided. Read the question and answer based on the information provided. Don’t assume anything. Ram is born on 1 August 1974 and has a 60% aggregate in graduation -he has 15 years" experience in an organization with 5 years as accounts manager.