Is Ethanol Miscible In Water
Yes, ethanol is miscible in water. It has two carbon atoms and an OH group. So, ethanol can form hydrogen... View Article
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Why Is Bromobenzene Unreactive
Bromobenzene is unreactive mostly in SN1 and SN2 reactions. Why does it behave in such a manner? It is mainly... View Article
What Is Solid Liquid Extraction
Solid-liquid extraction is a type of extraction that is performed between the solid and liquid phases. Here, the solute phase... View Article
How Many Chiral Compounds Are Possible On Monochlorination Of 2 Methyl Butane
During the monochlorination of 2 methyl butane, four compounds are possible however only two of them will be chiral in... View Article
Is Iodine Highly Reactive
Iodine is a reactive element and belongs to the group known as halogens which by nature are said to be... View Article
A Man Has 10 Friends In How Many Ways He Can Invite One Or More Of Them To A Party
1) 10! 2) 210 3) 10! – 1 4) 210 – 1 Answer: (4) 210-1 Solution: Total Number of ways... View Article
Number Of Ways In Which We Can Select Three Numbers From 1 To 30 Exclude Every Selection Of All Even Numbers Is
1) 4060 2) 3605 3) 455 4) None of these Answer: (2) 3605 Solution: We need to select three numbers... View Article
Number Of Ways In Which 10 Persons Can Go In Two Boats So That There May Be 5 On Each Boat
1) ½ (10C5) 2) 2(8C4) 3) ½ (8C5) 4) None of these Answer: (2) 2 x 8C4 Solution: Two person... View Article
There Are 9 Chairs In A Room On Which 6 Persons Are To Be Seated Out Of Which One Is Guest
1) 6720 2) 60480 3) 30 4) 346 Answer: (1) 6720 Solution: There are 9 chairs and 6 persons to... View Article
To Fill 12 Vacancies There Are 25 Candidates Of Which Five Are From Scheduled Caste If 3 Of The Vacancies
1) 5C3 x 22C9 2) 22C9 – 5C3 3) 22C3 + 5C3 4) None of these Answer: (1) 5C3 x... View Article
In How Many Ways Can 6 Persons Be Selected From 4 Officers And 8 Constables If At Least One Officer
1) 224 2) 672 3) 896 4) None of these Answer: (3) 896 Solution: Number of ways choosing 6 persons... View Article
The Number Of Groups That Can Be Made From 5 Different Green Balls 4 Different Blue Balls And 3 Different Red
1) 3700 2) 3720 3) 4340 4) None of these Answer: (2) 3720 Solution:Total number of group of balls =... View Article
Six And Four Signs Are To Be Placed In A Straight Line So That No Two Signs Come Together
1) 15 2) 18 3) 35 4) 42 Answer: (3) 35 Solution: The required number of ways = 7C4 =... View Article
In The 13 Cricket Players 4 Are Bowlers Then How Many Ways Can Form A Cricket Team Of 11 Players
1) 55 2) 72 3) 78 4) None of these Answer: (3) 78 Solution: Given, 13 cricket players and 4... View Article
How Many Words Of 4 Consonants And 3 Vowels Can Be Formed From 6 Consonants And 5 Vowels
1) 75000 2) 756000 3) 75600 4) None of these Answer: (2) 756000 Solution: We need to find the number... View Article
The Number Of Ways Of Dividing 52 Cards Amongst Four Players Equally Are
1) (52!)/(13!)4 2) 52!/[(13!)2.4!] 3) 52!/[(12!)4.(4!)] 4) None of these Answer: (1) (52!)/(13!)4 Solution: The number of ways of dividing... View Article
Choose The Correct Number Of Ways In Which 15 Different Books Can Be Divided Into Five Heaps
1) 15!/[5!.(3!)5] 2) 15!/(3!)5 3) 15C5 4) 15P5 Answer: (1) 15!/[5!.(3!)5] Solution: The required number of ways = 15C3 x... View Article
Out Of 6 Books In How Many Ways Can A Set Of One Or More Books Be Chosen
1) 64 2) 63 3) 62 4) 65 Answer: (2) 63 Solution: Number of ways of choosing one book =... View Article
A Student Is To Answer 10 Out Of 13 Questions In An Examination Such That He Must Choose At Least 4
1) 140 2) 196 3) 280 4) 346 Answer: (2) 196 Solution: Required number of choices available = 5C5 x... View Article
Two Packs Of 52 Cards Are Shuffled Together The Number Of Ways In Which A Man Can Dealt 26 Cards
1) 52C26.226 2) 104C26 3) 2.52C26 4) None of these Answer: (1) 52C26.226 Solution: Number of ways in which a... View Article
