Reaction with Metals

Q. In the reaction H-C≡ CH\xrightarrow[{CH3CH2Br}]{NaNH2/liq. NH3}X\xrightarrow[{CH3CH2Br}]{NaNH2/liq.NH3}Y X and Y ar

Q. 52 What is the main product formed when CH3CH2CH(F)CH3 is treated with alcoholic KOH?

Q. Is boron a metalloid or nonmetal

Q. The correct order of stability for the following superoxides is

1. KO2 > RbO2 > CsO2

2. RbO2 > CsO2 > KO2

3. CsO2 > RbO2 > KO2

4. KO2 > CsO2 > RbO2

Q.

Sodium acetate can be converted to ethane by

1. Heating with calcium acetate

2. Heating with LiAlH4

3. Electrolysing its aqueous solution

4. Heating with sodalime

Q. BaCl2.2H2O which bond present?

Q. Which of the alkyl halide cannot made good yield with Wurtz reaction?
A. n butane
B. n hexane
C. n heptane
D. dimethylbutane

Q. 20. Which interaction is stronger , hydrogen bond or dipole-dipole why?

Q. order of extent ofH bonding in NH3 HF and H2

Q. Explain the formation of lewis bond structure of clo4-(per chlorate ion

Q. what is the correct order of reducing nature of group 1 elements

Q. Reaction between NaOH and alkyne

Q. Chlorine in +1 oxidation state is in(a) HCI (b) HCIO4 (c) ICI(d) ClO

Q. 31229. CH3 CH =CH2+ HBr in presence ofBenzoyl peroxide gives Produucts.Which of the following is a possible product in the above reaction?(1) CH3 CH2 CH2-Br(2) CH3-CHBr-CH2-Br(3) CH3 -CHCH2CH2Br-CH3(4) All of thes

Q. How many lone pairs are present in p4o6 molecule? 1. 4 2. 8 3. 16 4. 12

Q.

Fluorination is violent, it is carried out in the presence of:

1. Cu

2. Ni

3. HNO₃

4. HCl

Q. Sodium nitroprusside when added to an alkaline solution of sulphide ions produces a colouration which is:

1. Red
2. Violet
3. Brown
4. Green

Q.

The compound $C{H}_3|C{H}_3-C=CH-C{H}_3$on reaction with $NaI{O}_4$ in the presence of $KMn{O}_4$ gives

1. CH₃CHO+CO₂

2. CH₃COCH₃

3. CH₃COCH₃+CH₃COOH

4. CH₃COCH₃+CH₃CHO

Q. 25.Al2cl6 hypovalent or hypervalent

Q. 3.Which has efficient packing in H2O or H2O2 and also draw structure of H2O2 in hydrogen bonding

Q.

Silver acetate. The main product of this reaction is

[Kurukshetra CET 2002]

1. 

2. 

3. 

4. None of these

Q. 18. 10g of MnO2 on reaction with HCL forms 2.24L of chlorine gas at NTP, the percentage impurity of MnO2 is 1) 87% 2) 25% 3) 33.3% 4) 13%

Q. Why water molecule does not form hydrogen bonding in gaseous state

Q.

A Grignard reagent is prepared by the action of magnesium in dry ether on

1. C₂H₅OH

2. C₂H₆

3. C₂H₅Cl

4. C₂H₅CN

Q.

What is ionisation enthalpy ? Why caesium has less value of ionisation enthalpy ?

Q.

why does beryllium does not reacts with hydrogen?

Q. 39. What is called back bonding ? And explain concept of finding acidic and basic strength

Q. A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are

1. Methyl chloride and propyl chloride
2. Methyl chloride and ethyl chloride
3. Isopropyl chloride and methyl chloride
4. Isopropyl chloride and ethyl chloride

Q.

(CH₃)₃CMgCl on reaction with D₂O produces :

1. (CH₃)₃CD

2. (CH₃)₃OD

3. (CD₃)₃CD

4. (CD₃)₃OD

Q.

How to find structure and hybridization of

IO₄^-