Find the odd one out among the following sets give reasons.A. Nitrogen – InterviewSolution

InterviewSolution

1.	Find the odd one out among the following sets give reasons.A. Nitrogen fluorine , oxygen , hydrogen , ozone.B. `CaO,NaCI,Co,FeS,KNO_(3)`C. `Se, K, Cu,Pb,SI`D. Bromine , iodine ,carbon ,sulphur, silicon
Answer» (a) Ozone (b) Co (C ) SI (d) Bromine (a) Ozone is a triatomic molecule while others are diatomic molecules . (b) Co is the symbol for cobalt which is an element while other are compounds. ( C) Sl is not the symbol for any element while others are symbols for the respective elements (d) Bromine is liquid non-metal and other are solids.

Discussion

No Comment Found

Related InterviewSolutions

Analyse the above diagrams and answer the following questions. (a) Identify the test tube (s) in which new substance (s) is`//`are formed. (b) Does the composition change in all the test tubes ? Give reasons . (C ) Identify the colour changes associated with the relevant physical change given.
Match the following
Match the following
Give two example for the followingA. fast changesB. Desirable changesC. non- periodic changesD. Physical changes
Which among the following molecules possesses the maximum number of oxygen atoms?A. Carbon dioxideB. Nitric acidC. Sulphuric acidD. Calcium oxide
What type of change is formation of coal ? A. `A-e,B-d,C-a,D-c,E-b`B. `A-c,B-d,C-e,D-b,E-a`C. `A-b,B-e,C-a,D-c,E-d`D. `A-c,B-d,C-b,D-e,E-a`
Identify the incorrect formulae among the following : (A) `CaO_(2)` (B) `Na_(2)O` (C ) `Mg_(3)S_(2)` (D) `Mg_(2)O`A. A,B,DB. A,C,DC. C,D,ED. B,C,D
A desirable change is always associated with an undesirable change. Give as example.
The formula of a compound of a metal with oxygen is written as MO and that of another metal is written as `M_(2)O` .Give reason. What are the formulae of the compounds of the above metals with chlorine ?
Burining of cracker is a `"______"` and `"______"` changeA. physical ,fastB. chemical , fastC. chemical ,slowD. physical, slow