Question # 1

You are styding the rate of hydrolysis of organic compund staarch under different conditonns of temperature. In which branch of chemistry this topic will fall

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Organic Chemistry

analytical chemistry

Biochemistry

Physical Chemistry

Lanthanide series starts after the elemetn

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Osmium

Actinium

Lanthanum

None of these

Bond dissociation for O2 is

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505 kJ/mol

705 kJ/mol

605 kJ/mol

498 kJ/mol

Whcih of the following atoms obey duplet rule.

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O₂

Cl₂

H₂

Li₂

Number of protons in the nucleus of an atom is called.

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Atomic number

Mass Number

Mass Unit

Electron Number

Stochiometric calculators are used to prepare.

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Soaps

Shampo

Perfumes

All of these

Which of the following does not happpen, when a system is at equilibrium state.

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Reaction continues to occur in both the directions

Concentration of reactants and products stop changig

Forward and reverse reactions stop

Forward and reverse rates become equal

Which element has the highest melting point.

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K

Cs

Na

Rb

Washing clothes at 140 ^oF uses almost the energy as at 140 ^oF wash

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Half

Thrice

Twice

None of the above

Emperical Formula of Glucose is

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CH2O

CHO

CHO2

C2HO

How many atoms are present in one gram of H2O?

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1002 x 10²³ atom

6.022 x 10²³atom

0.334 x 10²³atom

2.004 x 10²³atom

Which of the following cannot be classified as Arrhenius acid

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CO2

HNO3

H2CO3

H2SO4

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