Which of the following covalent molecule is an exception to oct-Turito

General

Easy

Chemistry-

Which of the following covalent molecule is an exception to octet rule?

Chemistry-General

BeCl₂
CO₂
H₂O
CH₄

Answer:The correct answer is: BeCl₂

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.A car is moving with speed 30 m. Due to application of brakes it travells 30 m before stopping. Find its acceleration.

physicsGeneral

General

chemistry-

Metal ‘M’ forms a peroxide of the type MO₂ . Valency of the metal with respect to oxygen

chemistry-General

General

physics-

A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break

Because here tension is maximum

A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break

physics-General

Because here tension is maximum

General

physics-

Consider a vector $stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top$ . Another vector that is perpendicular to $stack F with rightwards arrow on top$ is

Since

stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top

is lying in

X minus Y

plane, hence the vector perpendicular to

stack F with rightwards arrow on top

must be lying perpendicular to

X minus Y

plane

i e comma

along

Z

-axis.

Consider a vector $stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top$ . Another vector that is perpendicular to $stack F with rightwards arrow on top$ is

physics-General

Since

stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top

is lying in

X minus Y

plane, hence the vector perpendicular to

stack F with rightwards arrow on top

must be lying perpendicular to

X minus Y

plane

i e comma

along

Z

-axis.

General

physics-

A circular road of radius $1000 blank m$ has banking angle $45 degree.$ The maximum safe speed of a car having mass $2000 blank k g$ will be, if the coefficient of friction between tyre and road is 0.5

The maximum velocity for a banked road with friction,

v to the power of 2 end exponent equals g r open parentheses fraction numerator u plus t a n theta over denominator 1 minus u t a n theta end fraction close parentheses

rightwards double arrow v to the power of 2 end exponent equals 9.8 cross times 1000 cross times open parentheses fraction numerator 0.5 plus 1 over denominator 1 minus 0.5 cross times 1 end fraction close parentheses rightwards double arrow v equals 172 m divided by s

A circular road of radius $1000 blank m$ has banking angle $45 degree.$ The maximum safe speed of a car having mass $2000 blank k g$ will be, if the coefficient of friction between tyre and road is 0.5

physics-General

The maximum velocity for a banked road with friction,

v to the power of 2 end exponent equals g r open parentheses fraction numerator u plus t a n theta over denominator 1 minus u t a n theta end fraction close parentheses

rightwards double arrow v to the power of 2 end exponent equals 9.8 cross times 1000 cross times open parentheses fraction numerator 0.5 plus 1 over denominator 1 minus 0.5 cross times 1 end fraction close parentheses rightwards double arrow v equals 172 m divided by s

General

chemistry-

The bond between two identical non-metal atoms has a pair of electrons

chemistry-General

General

chemistry-

NH₃ has a much higher boiling point than PH₃ because

chemistry-General

General

chemistry-

The maximum number of molecules that one water molecule can hold through hydrogen bonding is

chemistry-General

General

chemistry-

The wavelength of the wave function of a bonding molecular orbital formed by LCAO is

chemistry-General

General

chemistry-

In the formation of homo diatomic neutral molecule, if ‘N’ atomic orbitals combine, then the total number of bonding molecular orbitals formed is

chemistry-General

General

physics-

An unbanked curve has a radius of $60 m.$ The maximum speed at which car can make a turn if the coefficient of static friction is 0.75, is

V subscript m a x end subscript equals square root of mu r g end root equals square root of 0.75 cross times 60 cross times 9.8 end root equals 21 m divided by s

An unbanked curve has a radius of $60 m.$ The maximum speed at which car can make a turn if the coefficient of static friction is 0.75, is

physics-General

V subscript m a x end subscript equals square root of mu r g end root equals square root of 0.75 cross times 60 cross times 9.8 end root equals 21 m divided by s

General

physics-

A stone is projected from the ground with velocity $50 blank m divided by s$ at an angle of $30 degree$ . It crosses a wall after $3 blank s e c$ . How far beyond the wall the stone will strike the ground $left parenthesis g equals 10 blank m divided by sec to the power of 2 end exponent invisible function application blank right parenthesis$

Total time of flight

equals fraction numerator 2 u sin invisible function application theta over denominator g end fraction equals fraction numerator 2 cross times 50 cross times 1 over denominator 2 cross times 10 end fraction equals 5 s

Time to cross the wall

equals 3 blank s e c

(Given)
Time in air after crossing the wall

equals open parentheses 5 minus 3 close parentheses equals 2 blank s e c

therefore

Distance travelled beyond the wall

equals open parentheses u cos invisible function application theta close parentheses t

equals 50 cross times fraction numerator square root of 3 over denominator 2 end fraction cross times 2 equals 86.6 blank m

A stone is projected from the ground with velocity $50 blank m divided by s$ at an angle of $30 degree$ . It crosses a wall after $3 blank s e c$ . How far beyond the wall the stone will strike the ground $left parenthesis g equals 10 blank m divided by sec to the power of 2 end exponent invisible function application blank right parenthesis$

physics-General

Total time of flight

equals fraction numerator 2 u sin invisible function application theta over denominator g end fraction equals fraction numerator 2 cross times 50 cross times 1 over denominator 2 cross times 10 end fraction equals 5 s

Time to cross the wall

equals 3 blank s e c

(Given)
Time in air after crossing the wall

equals open parentheses 5 minus 3 close parentheses equals 2 blank s e c

therefore

Distance travelled beyond the wall

equals open parentheses u cos invisible function application theta close parentheses t

equals 50 cross times fraction numerator square root of 3 over denominator 2 end fraction cross times 2 equals 86.6 blank m

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Which of the following covalent molecule is an exception to octet rule?

BeCl2 CO2 H2O CH4

Answer:The correct answer is: BeCl2

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.A car is moving with speed 30 m. Due to application of brakes it travells 30 m before stopping. Find its acceleration.

.A car is moving with speed 30 m. Due to application of brakes it travells 30 m before stopping. Find its acceleration.

Metal ‘M’ forms a peroxide of the type MO2 . Valency of the metal with respect to oxygen

Metal ‘M’ forms a peroxide of the type MO2 . Valency of the metal with respect to oxygen

A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break

A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break

Consider a vector . Another vector that is perpendicular to is

Consider a vector . Another vector that is perpendicular to is

A circular road of radius has banking angle The maximum safe speed of a car having mass will be, if the coefficient of friction between tyre and road is 0.5

A circular road of radius has banking angle The maximum safe speed of a car having mass will be, if the coefficient of friction between tyre and road is 0.5

The bond between two identical non-metal atoms has a pair of electrons

The bond between two identical non-metal atoms has a pair of electrons

NH3 has a much higher boiling point than PH3 because

NH3 has a much higher boiling point than PH3 because

The maximum number of molecules that one water molecule can hold through hydrogen bonding is

The maximum number of molecules that one water molecule can hold through hydrogen bonding is

The wavelength of the wave function of a bonding molecular orbital formed by LCAO is

The wavelength of the wave function of a bonding molecular orbital formed by LCAO is

In the formation of homo diatomic neutral molecule, if ‘N’ atomic orbitals combine, then the total number of bonding molecular orbitals formed is

In the formation of homo diatomic neutral molecule, if ‘N’ atomic orbitals combine, then the total number of bonding molecular orbitals formed is

An unbanked curve has a radius of The maximum speed at which car can make a turn if the coefficient of static friction is 0.75, is

An unbanked curve has a radius of The maximum speed at which car can make a turn if the coefficient of static friction is 0.75, is

A stone is projected from the ground with velocity at an angle of . It crosses a wall after . How far beyond the wall the stone will strike the ground

A stone is projected from the ground with velocity at an angle of . It crosses a wall after . How far beyond the wall the stone will strike the ground

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BeCl₂
CO₂
H₂O
CH₄

Answer:The correct answer is: BeCl₂

Metal ‘M’ forms a peroxide of the type MO₂ . Valency of the metal with respect to oxygen

Metal ‘M’ forms a peroxide of the type MO₂ . Valency of the metal with respect to oxygen

Consider a vector $stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top$ . Another vector that is perpendicular to $stack F with rightwards arrow on top$ is

Consider a vector $stack F with rightwards arrow on top equals 4 stack i with hat on top minus 3 stack j with hat on top$ . Another vector that is perpendicular to $stack F with rightwards arrow on top$ is

A circular road of radius $1000 blank m$ has banking angle $45 degree.$ The maximum safe speed of a car having mass $2000 blank k g$ will be, if the coefficient of friction between tyre and road is 0.5

A circular road of radius $1000 blank m$ has banking angle $45 degree.$ The maximum safe speed of a car having mass $2000 blank k g$ will be, if the coefficient of friction between tyre and road is 0.5

NH₃ has a much higher boiling point than PH₃ because

NH₃ has a much higher boiling point than PH₃ because

An unbanked curve has a radius of $60 m.$ The maximum speed at which car can make a turn if the coefficient of static friction is 0.75, is

An unbanked curve has a radius of $60 m.$ The maximum speed at which car can make a turn if the coefficient of static friction is 0.75, is