Related Questions

Which amongst the following is not a Cation?
A Aluminium ion
B Copper ion
C Sulphate ion
D Zinc ion
Which among the following is a cation?
A Ammonium
B Iodide
C Fluoride
D Chloride
নেসলার'স রিএজেন্ট দ্বারা নিচের কোন ক্যাটায়ন (Cation) শনাক্ত করা যায়?
A A13+
B NH4+
C NA+
D Cu2+
The element absorbed both in cation and anion form is
A Sulphur
B Nitrogen
C Calcium
D Phosphorus
Cation exchanger is regenerated usually with
A NaOH
B H2SO4
C Hydrazine
D Alum solution
Zeolite used in water softening process (cation exchange) is regenerated by washing with
A Brine
B Chloramines
C Sodium bisulphite
D Liquid chlorines
Cation exchange resins used in water treatment is made from __________ resin.
A Urea formaldehyde
B Epoxy
C Amino
D Phenolic
A,B,C,D,E and F are a group of friends.There are two housewifes, one professor,one engines ,one accountant and one lawyer in the group.There are only two married couples in the group .The lawyer is married to D, who is a housewife.No woman in the group is either an engineer or an accountant.C, the accountant, is married to F, who is a professor.A is married to a housewife. Which of the following is one of the married couples ?
A A&D
B D&E
C B&E
D A&B
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
In the two consecutive numbers one-fourth of the smaller one exceeds one - fifth of the larger one by 3 . The numbers are :
A 36, 37
B 13, 12
C 64, 65
D 24, 25

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