IIT JEE Practice Question and Answer
8Q: Which of the following is NOT a representative of a Buddhist Art? 2687 05b5cc6a7e4d2b4197774cdf9
5b5cc6a7e4d2b4197774cdf9- 1Relic Towerstrue
- 2Viharafalse
- 3Stupafalse
- 4Chaityafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Relic Towers"
Explanation :
Answer: A) Relic Towers Explanation:
Q: Government regulation is intended to 2686 05b5cc675e4d2b4197774c0e2
5b5cc675e4d2b4197774c0e2- 1discourage producers from taking harmful actions.true
- 2encourage producers to follow the Constitution.false
- 3discourage producers from making a profit.false
- 4encourage producers to take negative actions.false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "discourage producers from taking harmful actions."
Explanation :
Answer: A) discourage producers from taking harmful actions. Explanation: Government regulation protects constitutional rights, safety, and fairness. Hence, Government regulation is intended to discourage producers from taking harmful actions.
Q: Which type of molecule is CF4? 2686 05b5cc675e4d2b4197774c0ec
5b5cc675e4d2b4197774c0ec- 1nonpolar, with a symmetrical distribution of chargetrue
- 2polar, with an asymmetrical distribution of chargefalse
- 3nonpolar, with an asymmetrical distribution of chargefalse
- 4polar, with a symmetrical distribution of chargefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "nonpolar, with a symmetrical distribution of charge"
Explanation :
Answer: A) nonpolar, with a symmetrical distribution of charge Explanation: CF4 is tetrahedral. Since the four 'F' atoms have the same electronegativity values, there is no bias in electron distribution toward any one. Therefore, electron/charge distribution is symmetrical, which also means that the molecule is nonpolar. Hence, CF4 is nonpolar molecule with a symmetrical distribution of charge.
Q: Chilling is most commonly practiced by 2683 05b5cc6b8e4d2b4197774d64d
5b5cc6b8e4d2b4197774d64d- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Chilling is most commonly practiced by Food Handlers like restaurents, hotels,... Chilling or Cooling is nothing but preserving the food in a cool storage like refrigerators.
Q: That which cannot be corrected 2679 05b5cc6a6e4d2b4197774cd7a
5b5cc6a6e4d2b4197774cd7a- 1Incorrigibletrue
- 2Illegiblefalse
- 3Illegalfalse
- 4Indeliblefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Incorrigible"
Explanation :
Answer: A) Incorrigible Explanation: The One-word substitute for That which cannot be corrected is Incorrigible.
Q: If log72 = m, then log4928 is equal to ? 2678 05b5cc761e4d2b4197774fd5d
5b5cc761e4d2b4197774fd5d- 11/(1+2m)false
- 2(1+2m)/2true
- 32m/(2m+1)false
- 4(2m+1)/2mfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "(1+2m)/2"
Explanation :
Answer: B) (1+2m)/2 Explanation: log4928 = 12log77×4 = 12+122log72= 12+log72= 12 + m= 1+2m2.
Q: A box contains 4 different black balls, 3 different red balls and 5 different blue balls. In how many ways can the balls be selected if every selection must have at least 1 black ball and one red ball ? 2676 05b5cc6f4e4d2b4197774f004
5b5cc6f4e4d2b4197774f004- 124 - 1false
- 22425-1false
- 3(24-1)(23-1)25true
- 4Nonefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "(24-1)(23-1)25"
Explanation :
Answer: C) C Explanation: It is explicitly given that all the 4 black balls are different, all the 3 red balls are different and all the 5 blue balls are different. Hence this is a case where all are distinct objects. Initially let's find out the number of ways in which we can select the black balls. Note that at least 1 black ball must be included in each selection. Hence, we can select 1 black ball from 4 black ballsor 2 black balls from 4 black balls.or 3 black balls from 4 black balls.or 4 black balls from 4 black balls. Hence, number of ways in which we can select the black balls = 4C1 + 4C2 + 4C3 + 4C4= 24-1 ........(A) Now let's find out the number of ways in which we can select the red balls. Note that at least 1 red ball must be included in each selection. Hence, we can select 1 red ball from 3 red ballsor 2 red balls from 3 red ballsor 3 red balls from 3 red balls Hence, number of ways in which we can select the red balls= 3C1 + 3C2 + 3C3=23-1........(B) Hence, we can select 0 blue ball from 5 blue balls (i.e, do not select any blue ball. In this case, only black and red balls will be there)or 1 blue ball from 5 blue ballsor 2 blue balls from 5 blue ballsor 3 blue balls from 5 blue ballsor 4 blue balls from 5 blue ballsor 5 blue balls from 5 blue balls. Hence, number of ways in which we can select the blue balls= 5C0 + 5C1 + 5C2 + … + 5C5= 25..............(C) From (A), (B) and (C), required number of ways= 2524-123-1
Q: What is the principle carbohydrate of milk? 2675 05b5cc64de4d2b4197774bc7f
5b5cc64de4d2b4197774bc7f- 1Fructosefalse
- 2Sucrosefalse
- 3Lactosetrue
- 4Galactosefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Lactose"
Explanation :
Answer: C) Lactose Explanation: Lactose is the major carbohydrate in the milk of most species. Lactose is a disaccharide composed of the monosaccharides D-glucose and D-galactose, joined in a ß-1,4-glycosidic linkage. The chemical name for lactose is 4-0-ß-D-galactopyranosyl-D-glucopyranose.

