Maths-

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Easy

Question

The length of the intercept made by the parabola x² –7x +4y +12= 0 on x-axis is

4
3
1
2

hint Hint:

put y=0 in the equation and find out the values of x.

The correct answer is: 1

length of intercept = 1

on the x axis, y =0
using this, we get
x²-7x+12=0
x²-4x – 3x+12=0
x(x-4)-3(x- 4) =0
x=3,4
length of intercept 4-3=1

distance between two points on the x axis is just the difference between the x coordinates of the two points, since y =0.

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The in correct statement is-

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a) NH4Cl
b)KNO₃
c)K₃[Fe(CN)₆]
d)H₂CO₃

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The true statements from the following are-
a)PH₅,NCl₅and BiCl₅ do not exist
b)I3+hasbentgeometry
c)XeF₄is non-polar molecule
d)CO and C₂–2 has same bond order
e)MgCl₂ has more ionic nature than MgO

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The length of the intercept made by the parabola x2 –7x +4y +12= 0 on x-axis is

4 3 1 2

put y=0 in the equation and find out the values of x.

The correct answer is: 1

length of intercept = 1on the x axis, y =0using this, we getx2-7x+12=0x2-4x – 3x+12=0x(x-4)-3(x- 4) =0x=3,4length of intercept 4-3=1

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The length of the intercept made by the parabola x² –7x +4y +12= 0 on x-axis is

4
3
1
2

length of intercept = 1

on the x axis, y =0
using this, we get
x²-7x+12=0
x²-4x – 3x+12=0
x(x-4)-3(x- 4) =0
x=3,4
length of intercept 4-3=1

The common features among the species CN^–,CO and NO⁺are

The common features among the species CN^–,CO and NO⁺are

Among the following ions, the p $pi$ -d $pi$ over lap could be present in-

Among the following ions, the p $pi$ -d $pi$ over lap could be present in-

Which of the following have covalent, coordinate and ionic all three type of bonds -
a) NH4Cl
b)KNO₃
c)K₃[Fe(CN)₆]
d)H₂CO₃

Which of the following have covalent, coordinate and ionic all three type of bonds -
a) NH4Cl
b)KNO₃
c)K₃[Fe(CN)₆]
d)H₂CO₃

The true statements from the following are-
a)PH₅,NCl₅and BiCl₅ do not exist
b)I3+hasbentgeometry
c)XeF₄is non-polar molecule
d)CO and C₂–2 has same bond order
e)MgCl₂ has more ionic nature than MgO

The true statements from the following are-
a)PH₅,NCl₅and BiCl₅ do not exist
b)I3+hasbentgeometry
c)XeF₄is non-polar molecule
d)CO and C₂–2 has same bond order
e)MgCl₂ has more ionic nature than MgO

The nature of π-bond in per chlorate (ClO₄^–) ion is-

The nature of π-bond in per chlorate (ClO₄^–) ion is-

The correct order of increasing C–O bond length of CO,CO₃^2–,CO₂is-

The correct order of increasing C–O bond length of CO,CO₃^2–,CO₂is-

Increasing order of bond length in NO,NO⁺ and NO^– is-

Increasing order of bond length in NO,NO⁺ and NO^– is-