Recently Active Chemistry Questions

Calculate the mass of magnesium oxide obtained by burning 2.4 g of magnesium. ...

Predict whether the following molecules are iso-structural or not. Justify your answer. NMe3 and N(SiMe3)3. ...

The Mn3O4 formed on strong heating of a sample of MnSO4.4H2O was dissolved in 100cc of 0.1(N) FeSO4 containing H2SO4. The resulting solution reacted completely with 50cc of KMnO4 solution. 25cc of this KMnO4 solution requires ...

The type of bond present in {N_2}{O_5} are – ...

The compound which contains both covalent and co – ordinate bond is – ...

How does intermolecular and intramolecular hydrogen bonding affect melting and boiling points of molecules? ...

Arrange in the order of descending bond angle in OF2, OCl2 and OBr2 with proper explanation. ...

Arrange {H_2}O,,HC equiv CH,,N{H_3} and C{H_3}C{H_3} in order of acidity ...

Why do you think ice occupies more volume than the same mass of water? ...

Why is formic acid stronger than acetic acid? ...

AgF is soluble in water. why the other silver halieds (AgCl, AgBr, AgI) are not soluble in water??? ...

*Image* reacts with NaBH4 to give *Image* But there is no reaction of *Image* with NaBH4. Why? ...

1.12 ml of a gas is produced at S.T.P. by the action of 4.12 mg of alcohol, ROH, with methyl magnesium iodide. find the molecular mass of alcohol. ...

Will C Cl4 give white precipitate of Ag Cl on heating it with Ag NO3? ...

How does (CH3)3C-O-CH3 reacts with conc.HI and anh.HI seperately? I mean will the products be different or same..and what will be the products? ...

point out the more stable enol... A) Ph-C(OH)=CH-COOEt B) CH3-C(OH)=CH-C≡N ...

Which of the following has the most acidic hydrogen? (a) 3-hexanone (b) 2,4-hexanedione (c) 2,5-hexanedione (d) 2.3-hexanedione ...

If electrons r considered to behave like waves in The Schrodinger Wave equation then The electron waves must encompass the entire nucleus.The the wave will be present everywhere outside the nucleus , enveloping it completely. ...

Why do we see the characteristic colour of a metal ion when a salt of that metal ion is introduced in the flame? Why is it that all metal ions do not give the flame test? ...

1.922 g of MeOH was burnt in a constant-volume bomb calorimeter. The temperature of water rose by 4.2oC. If the heat capacity of the calorimeter and its contents is 10.4kJoC-1, calculate the molar heat of combustion of MeOH. ...

The directing power of the groups -N{{H}_{2}},-OC{{H}_{3}},-{{C}_{6}}{{H}_{5}}~and-N{{O}_{2}} follows the order ...

In the nitration of benzene, the active nitrating agent is ...

Why are alkynes less reactive than alkenes even though they have 2 pi bonds? ...

In the periodic table,note that for the main group elements,if the periodic group of the element is even,the monoatomic ion and the oxyanions of the element have charges that are even numbers,while if the periodic group numbe ...

If you rub a piece of gold, Au, vigorously, you can rub off 2.00 moles of gold atoms in a century. How many minutes are needed to rub off 1.50 micrograms of gold? ...

What is the difference between aqueous and alcoholic K(OH) ? ...

Which of the following substances is a strong electrolyte? ...

How does bleaching powder bleaches water? ...

Why do you think Pd or Ni can act as a good reducing agent (a good hydrogen donor)? ...

What do you mean by an alpha radiation? ...