# The ΔG in the process of melting of ice at -150C and 1atm pressure is

1.  ΔG is –Ve

2.  ΔG is +Ve

3.  ΔG=0

4.  All of these

4

ΔG is +Ve

Explanation :
No Explanation available for this question

# In which of the following cases, the reaction is spontaneous at all temperatures

1.  ΔG>0, ΔS>0

2.  ΔH0

3.  ΔH

4.  ΔH>0, ΔS

4

ΔH<0, ΔS>0

Explanation :
No Explanation available for this question

# The difference in ΔH and ΔE for the combustion of methane at 270C would be

1.  -1800 Cal

2.  -162 Cal

3.  -1200 Cal

4.  0

4

-1200 Cal

Explanation :
No Explanation available for this question

# Which of the following is not correct

1.  Dissolution of NH4Cl in excess of water is an endothermic process

2.  Neutralisation process is always exothermic

3.  The absolute value of enthalpy (H) can be determined experimentally

4.  The heat of reaction at constant volume is denoted by ΔE

4

The absolute value of enthalpy (H) can be determined experimentally

Explanation :
No Explanation available for this question

# For a reaction 2A(S)+2B(G)→2C(l)+D(g). If heat of reaction at constant pressure is 28 K.cal. The heat of reaction at constant volume at 270C is

1.  -27.4 K.cal

2.  27.4 K.cal

3.  28.4 K.cal

4.  28 K.cal

4

-27.4 K.cal

Explanation :
No Explanation available for this question

# Zn(s)+Cu+2(ag)→Cu(s)+Zn+2(ag)Given that ΔfG0 for Cu+2(ag) and Zn+2(ag) are +65.0 K.J.mol-1 and -147.2 K.J.mol-1 respectively then

1.  266.2 KJ

2.  111.2 KJ

3.  -212.2 KJ

4.  -82.2 KJ

4

-212.2 KJ

Explanation :
No Explanation available for this question

# The number of primary alcoholic isomers with the formula C4H10O is

1.  1

2.  2

3.  3

4.  4

4

2

Explanation :
No Explanation available for this question

# For the estimation of sulphur by Carius method, the organic compound is heated in Carius tube with

1.  BaCl2/Fuming HNO3

2.  BaCl2/H2SO4

3.  AgCl/HCl

4.  CaCl2/HCl

4

BaCl2/Fuming HNO3

Explanation :
No Explanation available for this question

# The suffixes for alcohols, aldehydes and ketones, according to IUPAC system are respectively

1.  –ane, -al, -keto

2.  –al, ol, keto

3.  –ol, -al, -one

4.  –ol, -ane, -one

4

–ol, -al, -one

Explanation :
No Explanation available for this question

# Formula of Prussian blue is

1.  Fe4[Fe(CN)6]3

2.  Na4[Fe(CN)6]

3.  Fe(CN)2

4.  Fe(NCS)3

4

Fe4[Fe(CN)6]3

Explanation :
No Explanation available for this question

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