Question # 1

The equivalent conductance of a 1 N solution of an electrolyte is nearly

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The same as its specific conductance

10³ times more than its specific conductance

10-3 times its specific conductance

100 times its specific conductance.

Which of the following process is not related with cannot cycle.

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Iso thermal expansion

Adiabatic expansion

Isothermal compression

Isobaric compression

The carbonate of which of the following will have highest lattice energy.

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Barium

Magnesium

Calcium

Strontium

The branch of chemistry which deals with the analysis of chemical products is known as.

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Physical chemistry

Organic chemistry

Inorganic chemistry

Analytical chemistry

The range of sound pressure for uncomfortable level is.

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80 - 90 dB

100 - 120 dB

130-140 dB

All above

If there are only two components in a solution with mole fraction X_Aand X_Bthen which of the following relation is correct.

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X_A + X _B = 0

X _A + X _B > 1

XA = XB < 1

XA = 1 - XB

The geometry of the molecule is primarily decided by

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Bond pairs around the central atom

No of k bond around the central atom

No of bond pairs as well as lone pairs around the central atom

No. of lone pairs on central atom

The pH of the tears is

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7.0

7.4

7.8

8.2

Indigotin is a dye obtained from indigo plant which belongs to the group of.

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Substantive dyes

Mordant dyes

Vat dyes

Disperse dyes

The phenomenon of x-ray diffraction was studied by

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Huygen

Bragg

Max Planck

None of above

For a given mass of a gas if temperature increase

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Pressure and volume remain Constance

Volume increases provided pressure is kept constant

Pressure decreases provided volume is constant

Both volume and pressure decrease

Which of the following statements is not correct with respect to errors in flame photometry.

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Errors rising form the phenomena developed in the Hollow cathode lamp

Background effect

Errors arising from test element itself

Spectral interference

The force responsible for dissolution of ionic compounds in water are

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Hydrogen bonds

Ion dipole forces

Ionic bonds

Van Der Waal forces

Select the correct IUPAC nae for [Co(NH3)6 ]2+

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Hexammoniacobaltate (II) ion

Hexaamminecobaltate (II) ion

Hexammoniacobalt (II) ion

Hexaamminecobalt (II) ion

The hybridization of S in SO2 is.

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sp

sp2

sp3

dsp2

Solid substances consist of an ordered any of ions and solid as a whole is electrically.

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Conductor

Neurtal

Acidic

Basic

The most common beta brase with a composition of 60 % copper and 40% zinc is called.

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Yellow brase

Red brase

Muntz metal

None of above

Which of the following sulphide is yellow in colour.

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HgS

PbS

CdS

SnS

Chemical compounds which are added to reduce to reactivity of glass are called.

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Formers

Modifiers

Stabilizers

None of these

The fluoride tooth paste contains

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SnF2 and Sn2P2O7

NaF

CaF2

None of these

Which of the following groups exert -1 effect.

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- NO2

- CN

-COOH

<C = 0

The reciprocal of the coefficient of viscosity in called.

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Density

Specific gravity

Fluidity

Conductance

Which of the following substance acts as gaseous pollutant.

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NO

NO2

CO

SO2

All above

___________ surfactants perform well over a wide range of water hardness and pH.

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Anionic

Cationic

Nonionic

Neutral

The magnitude of electron affinity depends on.

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Atomic size

Nuclear charge

Electronic configuration

All of the above

In a system , when the chemical potential of each component is the same for all phases. the equilibrium is said to be in

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Metastable equilibrium

Thermal equilibrium

Composition equilibrium

Mechanical equilibrium

Most Hazardous metal pollutant of automobile exhaust is.

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Tin

Mercury

Cadmium

Lead

Which name is associated with the rules which help in predicting the portability of anion.

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Soddy

Slater

Fajan

Linus pauling

Which of the following is NOT a hardware requirement for die casting.

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Water cooled metal cavities

Machined metal holding blocks

Ejection mechanism

Metal mold

Which of the following is planar?

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CH2Cl2

CHCl3

CCl4

C2H2

Of the molecules, SF4 Xe F4 and CF4 which have square planar geometry.

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SF4 , Xe f4 and CF4

SF4 only

CF4 only

XeF4 only

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