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Chemistry Quiz 16

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Chemistry Quiz 16

1 / 50

18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?

2 / 50

Which one of the following is not a periodic property ?

3 / 50

For the measurement of standard electrode potential Zn is dipped in________________?

4 / 50

Ethanol and methanol can be distinguished by a__________________?

5 / 50

Pi bonds are produced by overlapping of__________________?

6 / 50

Formaldehyde and lactose are combined to produce throat lozenges named as__________________?

7 / 50

Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?

8 / 50

Arsenic oxides are removed by passing through_________________?

9 / 50

Molten NaCl conducts electricity due to the presence of_______________?

10 / 50

Which of the following element doesnot show allotropy_________________?

11 / 50

Which of the following is not a fatty acid ?

12 / 50

Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?

13 / 50

Aldehyde and ketone have same general formula for homologous series_________________?

14 / 50

If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?

15 / 50

The boiling point increases down the zero group element due to_________________?

16 / 50

Which of the solid does not contain covalent bond________________?

17 / 50

Treatment of sucrose with conc. HNO3 gives__________?

18 / 50

Ncleophilic addition reactions are catalysed__________________?

19 / 50

Mixtures which distill over without change in composition called___________________?

20 / 50

Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

21 / 50

In a period electronegativity from left to right_________________?

22 / 50

The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?

23 / 50

Which metal is used as a reducing agent in Smelting______?

24 / 50

Each catalyst has_________________?

25 / 50

Which one of the following element has highest oxidation state in its compounds ?

26 / 50

For the generation of biogas, the materials commonly used are__________?

27 / 50

The element of group VIA which is a non-metal is________________?

28 / 50

Glycine is the name of an amino acid because___________________?

29 / 50

The discovery of neutron became very late because _______ ?

30 / 50

The valency of carbon Atom is __________ ?

31 / 50

NaOH is named as caustic soda because________________?

32 / 50

Cement is a mixture of________________?

33 / 50

The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called _________________?

34 / 50

Charge of electron was measured by__________________?

35 / 50

Only sigma bonds are present in__________________?

36 / 50

The IUPAC name of HCONH2 is___________?

37 / 50

If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?

38 / 50

The yellow colour in photochemical smog is due to presence of__________________?

39 / 50

Which substance can be used for disinfecting water ?

40 / 50

In a closed vessel, a gas is heated from 300K to 600 K. The kinetic energy becomes__________?

41 / 50

Elements in the same vertical group of the periodic table have same_______________?

42 / 50

Shielding effect across the period_________________?

43 / 50

Enthalpy change can be_________________?

44 / 50

What is clinker ?

45 / 50

What is the mass percent of silver in silver notrate, AgNO3?

46 / 50

Organic compounds are soluble in ____________________?

47 / 50

Presence of nitrogen in organic compounds is tested as__________?

48 / 50

The process of aluminium extraction is called__________________?

49 / 50

Which of the following are the conditions of colligative properties_______________?

50 / 50

Tetraethyl lead is used as______?

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