Question # 1

When light is exposed to a typical transition element, then electrons jumps from low orbitals to higher orbitals in

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f-orbitals

s-orbitals

p-orbitals

d-orbitals

Property due to which water acts as a universal solvent is

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Polarity

It's ability to make hydrogen bond

Both A and B

Strong dipole dipole interaction

At constant pressure, if the original volume is 546 cm³at which temperature the volume of gas 552 cm³

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1°C

2°C

3°C

4°C

The mono atomic gases are

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Halogens

Noble gases

6h group elements

Nitrogen and oxygen

At higher temperature isotherm moves away from y-axis because of increase in

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Pressure

Number of moles

Volume

Mass

Industrial materials and thermal power stations are coated by

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PVC

Polyester

Epoxy resin

PVA

The energy produced by a carbohydrate is:

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3 kcal/gm

2kcal/gm

6kcal/gm

4kcal/gm

Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen

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2 days

5 days

6 days

7 days

The deviation of a gas from ideal behaviour is maximum at

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-10°C and 5.0 atm

100°C and 2.0 atm

-10°C and 2.0 atm

0°C and 2.0 atm

The temperature in the incineration of industrial and hazardous waste process has a range of:

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950-1300C

250-500C

500-900C

900-1000C

Which of the following is not a property of crystalline solid

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geometric shape

cleavage plane

anisotropy

isomerism

Titanium is used as a catalyst in

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Hydrogenation

Dehydrogenation

Polymerization of P.E.

Oxidation of ammonia

Ethyl alcohol may be identified by

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Ring test

Iodoform test

Tollen's test

Bazeyer's test

A free radical reaction takes place in three steps, initiation, propagation and terminations. Which of the following expression represents a propagation step

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Pollution is

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Removal of top soill

Release of toxic/undesirable materials in enevironment

Conversation of energy

All the above

Monosaccharides are

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Aldoses

Ketoses

Either a and b

None of these

Linear shape is associated with set of hybrid orbitals?

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sp

sp2

sp3

dsp2

Which of the following contains single bonds

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Benzene

Alkyne

Alkene

Alkane

Which gasses are produced from landfills

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NH₃

H₂S

N₂

All of these

The malt-sugar in the presence of yeast or invertase gives

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Fructose

Glucose

Lignin

Alcohol

Formation of a cation is:

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Exothermic process

Non-endothermic process

Endothermic process

None of above

Keeping in view the size of atoms, which order is the correct one

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Mg > Sr

Ba > Mg

Lu > Ce

Cl > l

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