Question # 1

In diamond, each C-atom is covaently bonded wiht.......C-atom

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Two

Three

Four

Five

To Identify the concentration of a particular solution through titration is and application of.

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astrochemistry

analytical chemistry

geochemistry

Organic chemistry

4th and 5th priod of the long form of periodic table are called.

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Short periods

Normal periods

Very long peiods

Long periods

When new bonds ae formed, the energy is

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Consume

Remain same

Release

None of these

-------------acts are reserve energy sources.

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Enzymes

Vitamins

Proteins

Lipids

N-shell contains number of subshells.

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1

3

4

2

The reaction in which the products do not reombine to form reatants are called

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Addition reactions

Decomposition reactions

Irreversitble reactions

reversible reactions

All the noble gases have their valence electrons.

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Incomplete

Partialy filled

Completely filled

None of the above

Which ionic compound has the highest melting point.

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RbCl

KCl

LiCl

NaCl

When system is at quilibrium state.

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The rate of the forward and reverse rections become equal

The concentrationof reatants and product becoes equal

The oposing reactions stop

The rate of the reverse reactio becomes very low

At what temperature , rate of ammonia formation and decomposition is the highest.

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200 ^oC

300^oC

400 ^oC

500 ^oC

Formula mass of K2SO4 is.

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174 amu

110 amu

180 amu

145 amu

--------------- of the energy used by traditional electric bulb is wasted in producing heat.

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60%

50%

70%

90%

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