Question # 1

Glucose forms a polymer which is stored in liver the name of this polymer is:

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glycogen

starch

cellulose

arnylose

The weakest intermolecular forces present in a liquid may be

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Dipole-induced dipole forces

dipole-dipole forces

instantaneous forces

electrostatic forces between ions in a ionic solid

Which of the following is the element not present in all proteins

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Carbon

Hydrogen

Nitrogen

Sulphur

Charles s law is only satisfied if temperature is taken on

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Kelvin scale (b)

Celsius scale (°C)

Fahrenheit scale (°F)

All of these

Which of the following gas cannot be liquefied by Linde s method

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H₂O vapours

N₂

H₂

CO₂

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T₁= T₂= T₃

T₁< T₂< T₃

T₁> T₂> T₃

T₁> T₂= T₃

The electrical conductivity of the metals decreases with the increasing temperature. This is because

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the number of free electrons decrease

the bonds of the metal atoms become weak

the to and fro motion of the metal ions decrease

the increase of to and fro motion of the metal ions hinders the free movement of electrons

Water soluble component of starch is

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Amylose

Amylopectin

Both

Cellulose

Pressure of 1Nm^-2 is equal to

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One bar

1 psi

One pascal

One atmosphere

Temperature required for the dehydration of ethanol into ethene in the presence of HaSOu is

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130°C

170°C

175°C

180°C

Which of the following air pollutant is called quiet killer

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PAN

CO

NO₃

SO₃

SO₂and NO₂produce pollution by increasing

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Alkalinity

Acidity

Neutrality

Buffer action

Mustard gas is a

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Gas

High boiling speed

High melting liquid

Steam

The sun of all the energies of atoms, molecule, ion, within system is called

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Enthalpy

K.E. of the system

Internal energy

None

Which of the following enzymes brings about the hydrolysis of fats?

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Urease

Maltase

Zymase

Lypase

The saturated hydrocarbons usually end with suffix ______

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Ane

Ene

Yne

Oic

The negatively charged particles are called

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Cation

Radical

Anion

Positron

The chemical formula of gypsum is

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CaSO₄. 5H₂O

CaSO₄. 4H₂O

CaSO₄. 2H₂O

None of these

Alkene general formula :

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C_nH_2n+2

C_nH_2n

C_nH_2n-2

C_nH_2n+1

The percentage of nitrogen in ammonia is

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80%

82%

90%

50%

The conductivity of strong electrolyte

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Increases on dilution slightly

Does not change on dilution

Decreases on dilution

Depends on density of electrolyte it self

In Bohr model of hydrogen atom the distance between adjacent orbits increases away from the nucleus, the energy difference between the orbits

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Increases

Decreases

Reaming same

Orbits coincide

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