Which of the following is an organometallic compound?
Lithium acetate
Methyl lithium
Lithium dimethyl amide
Lithium methoxide
B.
Methyl lithium
Organometalllic compounds must contain, at least one metal-carbon bond. Methyl lithium, CH3Li is an organometallic compound.
Acetylene and HCHO react in presence of copper acetylide catalyst to form
But-2-yne-1, 2-diol
But-1-yne-1, 4-diol
But-2-ene-1, 4-diol
2-butyne-1, 4-diol
Compound A on ozonolysis gives acetone and glyoxal. The compound A is
2, 5-dimethyl hex-2, 4-dene
2, 5-dimethyl hex-1, 5-diene
2, 5-dimethyl hex-3, 4-diene
2, 5-dimethyl but-2, ene
, A and B are
alc KOH and SeO2
NaNH2 and lindlar catalyst
alc KOH and NaNH2
Lindlar catalyst and NaNH2
Correct order for solubility of alkaline earth metals in water is
MgF2 > CaF2 > SrF2 > BaF2
MgF2 <CaF2 <SrF2 <BaF2
MgF2 > CaF2 < SrF2 < BaF2
BaF2 >MgF2 >SrF2 >CaF2
A metal reacts with dil acid and liberates hydrogen. If the reduction potential of hydrogen be considered zero, the reduction potential of that metal will be
equal to its oxidation potential
positive
Zero
negative
Match List I with List II and choose correct answerfrom the codes given below
List I | List II |
A. NaNO3 | (i) Baking soda |
B. Na(NH4)HPO4 | (ii) Chile salt |
C. NaHCO3 | (iii)Microcosmic salt |
D. Na2CO3 . 10H2O | (iv)Washing soda |
A B C D
(i) (ii) (iii) (iv)
A B C D
(ii) (iii) (i) (iv)
A B C D
(iii) (i) (ii) (iv)
A B C D
(iv) (i) (ii) (iii)
Finely divided powder of charcoal adsorbs the substance X to a large extent. This is because
the surface area of charcoal is increased
charcoal powder can be spread over X homogeneously
X can be spread over charcoal homogeneously
charcoal is highly reactive