Which of the following statements are ...

Which of the following statements are not true for hydrogen ?

It exists as diatomic molecul.

It has one electron in the outermost shell.

It can lose an electron to form a cation which can freely exist.

It forms a large number of ionic compounds by losing an electron.

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The correct Answer is:

C, D

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Which of the following statement true ?

Aldehydes are less susceptible to oxidation than ketones

All aldehydes undergo Cannizzaro reaction

Aldehydes are more susceptible to oxidation than ketones

Formaldehyde does not react with ammonia

`Fe_((aq))^(2+)` gives brown colour with `NH_(4)SCN`

`Fe_((aq))^(3+)` gives blood red colour with `NH_(4)SCN`

`Fe_((aq))^(2+)`yieids colour with `K_(2)Fe(CN)_(6)`

`Ag^(o+)`reacts with `CO_(3)^(2-)` then black ppt is formed

if f(x) is differentiable function such that f(a) `in` f(b) then there exist no ` c in (a,b)` such that f(c) =0

The fucntion `x^(100) +sin x -1 ` is strictly increasing in `[0,1]`

if a,b,c are in A.P then at least one root of the equation `3ax^(2) -4bx+ c=0` is positive

The number of solution (s) of equation 3 `tan x + x^(3) =2 " in " (0,pi//4) " is " 2`