94420 + Interview Questions in Chemistry in Class 12

1.	The hybridisation of carbon in the carbonyl group is
Answer» `SP^3` `sp^2` sp `sp^3d` ANSWER :B

Discussion

2.	The hybridisation of carbon in graphite is?
Answer» `sp^2` `sp^3` `dsp^2` None Answer :A

Discussion

3.	The hybridisation of carbon in CHCI_3 is
Answer» `SP^3` `sp^2` sp `sp^3 d` ANSWER :A

Discussion

4.	The hybridisation of carbon in diamond graphite and acetylene is in the order:
Answer» `SP^3,sp^2,sp` `sp^2,sp^3,sp` `sp, sp^2, sp^3` `sp^2, sp, sp^3` ANSWER :A

Discussion

5.	The composition of carbon di oxide in air is ______
Answer» `DSP^(2)` `SP^(3)` `sp^(2)` sp Answer :C

Discussion

6.	The hybridisation of carbon in carbon monoxide is :
Answer» `SP^3` `sp^2` sp `dsp^2` ANSWER :C

Discussion

7.	The hybridisation of carbon atoms in C_2H_5Cl are
Answer» `SP^3` and `sp^2` `sp^3` and sp `sp^3` and `sp^3` `sp^2` and sp ANSWER :C

Discussion

8.	The hybridisation of carbon atoms in C_2H_5Clare
Answer» `SP^3 andsp^2` `sp^3 and sp` `sp^3 and sp^3` `sp^2 and sp` ANSWER :C

Discussion

9.	The hybridisation of carbon atoms in C-C single bond of HC-=C-CH=CH_(2) is :
Answer» `SP^(3),sp^(3)` `sp^(2),sp^(3)` `sp,sp^(2)` `sp^(3),sp`. ANSWER :C

Discussion

10.	The hybridisation of carbon atoms in C-C single bond of HC-=C-CH=CH_2 IS:
Answer» `sp^3-sp^3` `sp^2-sp^2` `sp-sp^2` `sp^3-sp` ANSWER :C

Discussion

11.	The hybridisation of carbon atoms in C-C single bond in HC-= C-CH=CH_(2) is :
Answer» 1. `SP^(3)-sp^(3)` 2. `sp^(2)-sp^(3)` 3. `sp-sp^(2)` 4. `sp^(3)-sp` Answer :C

Discussion

12.	The hybridisation of boron atom in orthoboric acid is
Answer» `SP` `sp^(2)` `sp^(3)` `sp^(3)d` Solution :The hybridisation of B in`H_(3)BO_(3)` is `sp^(2)`.

Discussion

13.	The hybridisation of atomic obitals of the transition metals in the following complexes are respectively. [Fe(H_(2)O)_(6)]^(3+), [Co(NH_(3))_(6)]^(3+) , [Ni(CN)_(4)]^(2-),(Ni(CO)_(4)]
Answer» `d^(2)sp^(3),sp^(3)d^(2),dsp^(2),sp^(3)` `sp^(3)d^(2),d^(2)sp^(3),sp^(3),dsp^(2)` `sp^(3)d^(2),d^(2)sp^(3),dsp^(2),sp^(3)` `d^(2)sp^(3),sp^(3)d^(2),sp^(3),dsp^(2)` Solution :`[FE(H_(2)O)_(6)]^(3+)`

Discussion

14.	The hybridisation of boron atom in orthoboric acid is :
Answer» `SP` `sp^2` `sp_3` `sp^3d` ANSWER :B

Discussion

15.	The hybridisation involved in K_3[Fe(CN)_6] is :
Answer» `Sp^2` `d^2sp^3` `d^3sp^2` `sp^3` ANSWER :B

Discussion

16.	The hybridisation involved in [CoF_6]^(3-) is:
Answer» `d^2sp^3` `d^3sp^2` `dsp^3` `sp^3d^2` ANSWER :D

Discussion

17.	The hybridisation and magnetic nature of [Ni(CN)_(4)]^(2-) are..........and............respectively.
Answer» ANSWER :`DSP^(2)`, DIAMAGNETIC

Discussion

18.	The hybridisation and magnetic nature of [Fe(CN)_(6)]^(3-) are.............and............respectively.
Answer» ANSWER :`d^(2)SP^(3)`, PARAMAGNETIC

Discussion

19.	The hybridisation and geometry of [Fe(CN)_(6)]^(2-) and [Fe(CN)_(6)]^(3-) are ……….and …………respectively.
Answer» ANSWER :`d^(2)SP^(3)`, OCTAHEDRAL

Discussion

20.	The hybridisation and geometry of [CoF_(6)]^(3-) are.............and..........respectively.
Answer» ANSWER :`SP^(3)d^(2)`, OCTAHEDRAL

Discussion

21.	The hybridisation and geometru of [Ni(CO)_(4)] are............and ...........respectively.
Answer» ANSWER :`SP^(3)` , TETRAHEDRAL

Discussion

22.	The hybridisation and geometry of ClO_(3)^(-) is :
Answer» `SP^(2)`, trigonal planar `sp^(3)`, TETRAHEDRAL `sp^(3)d^(2)`, pyramidal `sp^(3)`, pyramidal ANSWER :D

Discussion

23.	The hybridisation and bond angle in SO_3 are:
Answer» `sp^2, 120^@` `sp^3, 109^@ 28.` `sp^2, 109^@ 28.` None Answer :A

Discussion

24.	The hybridisatio nand unpaired electrons in [Fe(H_2O)_6]^(2+) ion are
Answer» `sp^3d^2, 4` `d^2sp^3,3` `sp^3d , 4` `sp^3 d^2 ,2` ANSWER :A

Discussion

25.	The Hunsdiecker reaction is believed to proceed by a free radical mechanism and involves the formation of an acyl hypohalite. A. R-overset(O)overset("\|\|")C-O-Ag+Br_(2)rarrR-overset(O)overset("\|\|")C-O-Br+AgBr B. R-overset(O)overset("\|\|")C-O-BrrarrR-overset(O)overset("\|\|")C-overset(.)O+Boverset(.)r C. R-overset(O)overset("\|\|")C-overset(.)CrarrR^(.)+CO_(2) D. R•+R-overset(O)overset("\|\|")C-OBrrarrR-Br+R-overset(O)overset("\|\|")C-O^(.) The rate determining step is :
Answer» STEP I Step II Step III Step IV Answer :D

Discussion

26.	The Hunsdiecker reaction is believed to proceed by a free radical mechanism and involves the formation of an acyl hypohalite. A. R-overset(O)overset("\|\|")C-O-Ag+Br_(2)rarrR-overset(O)overset("\|\|")C-O-Br+AgBr B. R-overset(O)overset("\|\|")C-O-BrrarrR-overset(O)overset("\|\|")C-overset(.)O+Boverset(.)r C. R-overset(O)overset("\|\|")C-overset(.)CrarrR^(.)+CO_(2) D. R•+R-overset(O)overset("\|\|")C-OBrrarrR-Br+R-overset(O)overset("\|\|")C-O^(.) Ph-CH=CH-underset(CH_(3))underset(\|)CH-overset(O)overset("\|\|")C-OAgoverset(Br_(2))underset(Delta)rarr" Product" The major product is :
Answer» `Ph-CH=CH-UNDERSET(CH_(3))underset(\|)CH-BR` `Ph-overset(Br)overset(\|)CH-CH=CH-CH_(3)` `PH-CH=overset(Br)overset(\|)C-CH_(2)-CH_(3)` `Ph-CH=CH-underset(CH_(3))underset(\|)CH-CH_(2)Br` ANSWER :B

Discussion

27.	The hybrid orbitals are at angle of X^@ to one another ' this statement is not valid for which of the following hybridisation.
Answer» `SP^(3)` `sp^(2)` `sp^(3)d^(2)` sp ANSWER :A

Discussion

28.	The Hunsdiecker reaction is believed to proceed by a free radical mechanism and involves the formation of an acyl hypohalite. A. R-overset(O)overset("\|\|")C-O-Ag+Br_(2)rarrR-overset(O)overset("\|\|")C-O-Br+AgBr B. R-overset(O)overset("\|\|")C-O-BrrarrR-overset(O)overset("\|\|")C-overset(.)O+Boverset(.)r C. R-overset(O)overset("\|\|")C-overset(.)CrarrR^(.)+CO_(2) D. R•+R-overset(O)overset("\|\|")C-OBrrarrR-Br+R-overset(O)overset("\|\|")C-O^(.) H_(3)C-overset(CH_(3))overset(\|)underset(CH_(3))underset(\|)C-overset(O)overset("\|\|")C-OAgoverset(Br_(2))underset(Delta)rarr " Major product":
Answer» `H_(3)C-OVERSET(CH_(3))overset(\|)underset(CH_(3))underset(\|)C-CH_(2)-Br` `H_(3)C-overset(CH_(3))overset(\|)underset(CH_(3))underset(\|)C-Br` `H_(3)C-overset(CH_(3))overset(\|)underset(CH_(3))underset(\|)C-overset(CH_(3))overset(\|)underset(CH_(3))underset(\|)C-CH_(3)` ANSWER :C

Discussion

29.	The human body does not produce
Answer» enzymes DNA VITAMINS hormones Answer :C

Discussion

30.	The human body does not produce:
Answer» Enzymes Vitamins Proteins Oxytocin Answer :B

Discussion

31.	The huge amount of energy which is released during atomic fission is due to
Answer» LOSS of mass Loss of electrons Loss of protons Loss of `alpha`-particles Solution :The huge amount of energy RELEASED during ATOMIC FISSION is due to loss of mass.

Discussion

32.	The human body does not produce :
Answer» VITAMINS HORMONES ENZYMES DNA. Answer :A

Discussion

33.	The hottst part of the blast furnace is
Answer» HEARTH Tuyers OUTLET for GASES Euternace for CHARGE ANSWER :A

Discussion

34.	The hot waste gases escapes from Bessemer converter are
Answer» `CO + CO_(2)` `N_(2) + SO_(2)` `CO_(2) + SO_(2)` `NO_(2) + SO_(2)` SOLUTION :Extraction of copper

Discussion

35.	The hot waste gases escape from blast furance are
Answer» `SO_(2), N_(2), CO` `N_(2), CO_(2), SO_(2)` `N_(2), CO, CO_(2)` `NO_(2), CO, SO_(2)` ANSWER :C

Discussion

36.	The hormones that regulates glucose level in blood are ……………………….
Answer» GLUCAGON and COLLAGEN INSULIN and GLYCOGEN Glucagon and Insulin Collagen and Glucagon SOLUTION :Glucagon and Insulin

Discussion

37.	The hormones which controls the presence of burning of fats, proteins, and carbohydrate and liberates energy in the body is
Answer» thyroxine insulin adrenaline cortisone Answer :B

Discussion

38.	The hormones that mediates the response to external stimuli are ………………..
Answer» EPINEPHRINE ADRENALINE EICOSANOIDS THYROXINE SOLUTION :Epinephrine

Discussion

39.	The hormone which transport glucose form blood to tissue is
Answer» glycogen thyroxin insulin heparin Answer :C

Discussion

40.	The hormone which maintains blood sugar level is :
Answer» Oxytocin Haemoglobin Insulin Ptylin Answer :C

Discussion

41.	The hormone which is secreted in the pancreas and controls the metabolism of glucose in the body is
Answer» thyroxine oxytocin Insulin cortisone. Answer :C

Discussion

42.	The hormone which controls the processes of burning of fats , proteins and carbohydrates and liberates energy in the body is
Answer» thyroxine adrenaline insulin CORTISONE. Solution :Since insulin MAINTAINS the level of glucose in blood , therefore , it controls the PROCESSES of burning of fats, proteins and CARBOHYDRATES.

Discussion

43.	The hormone which controls the uterine cycle in women is
Answer» ESTRONE ANDROSTERONE PROGESTERONE Testosterone Answer :C

Discussion

44.	Cryoscopy is related with
Answer» QUICK digestion Slow heartbeat Either of these None of these Answer :D

Discussion

45.	The hormone thyroxine:
Answer» QUICK digestion Slow heartbeat Either of these None of these Answer :D

Discussion

46.	The hormone used as an oral contraceptive is :
Answer» Aldosterone Cortisone Progesterone Testosterone Answer :C

Discussion

47.	The hormone responsible for bolting is _____
Answer» Is SECRETED by pancreas Is secreted by thyroid Decreases BLOOD sugar Does not STIMULATE metabolism Answer :B

Discussion

48.	The hormone thyroxine
Answer» a. is secreted by pancreas b. is secreted by thyroid c. decreases BLOOD sugar d. does not stimulate METABOLISM Solution :It is an amine hormone secreted from thyroid which stimulates rate of OXIDATIVE metabolism and regulates GENERAL growth and DEVELOPMENTS.

Discussion

49.	The hormone thyroxin is involved in
Answer» CONTROL of tissue metabolism regulation of GROWTH inhibits the production of URINE EFFECT on growth of body SOLUTION :The hormone thyroxin is involved in control of tissue metabolism.

Discussion

50.	The hormone that maintains the level of excretion of salt and water by kidney is ………………….
Answer» MINERAL CORTICOIDS THYROXINE NOREPINEPHRINE Milatonin SOLUTION :Mineral corticoids

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The hybridisation of carbon in the carbonyl group is

The hybridisation of carbon in graphite is?

The hybridisation of carbon in CHCI_3 is

The hybridisation of carbon in diamond graphite and acetylene is in the order:

The composition of carbon di oxide in air is ______

The hybridisation of carbon in carbon monoxide is :

The hybridisation of carbon atoms in C_2H_5Cl are

The hybridisation of carbon atoms in C_2H_5Clare

The hybridisation of carbon atoms in C-C single bond of HC-=C-CH=CH_(2) is :

The hybridisation of carbon atoms in C-C single bond of HC-=C-CH=CH_2 IS:

The hybridisation of carbon atoms in C-C single bond in HC-= C-CH=CH_(2) is :

The hybridisation of boron atom in orthoboric acid is

The hybridisation of atomic obitals of the transition metals in the following complexes are respectively. [Fe(H_(2)O)_(6)]^(3+), [Co(NH_(3))_(6)]^(3+) , [Ni(CN)_(4)]^(2-),(Ni(CO)_(4)]

The hybridisation of boron atom in orthoboric acid is :

The hybridisation involved in K_3[Fe(CN)_6] is :

The hybridisation involved in [CoF_6]^(3-) is:

The hybridisation and magnetic nature of [Ni(CN)_(4)]^(2-) are..........and............respectively.

The hybridisation and magnetic nature of [Fe(CN)_(6)]^(3-) are.............and............respectively.

The hybridisation and geometry of [Fe(CN)_(6)]^(2-) and [Fe(CN)_(6)]^(3-) are ……….and …………respectively.

The hybridisation and geometry of [CoF_(6)]^(3-) are.............and..........respectively.

The hybridisation and geometru of [Ni(CO)_(4)] are............and ...........respectively.

The hybridisation and geometry of ClO_(3)^(-) is :

The hybridisation and bond angle in SO_3 are:

The hybridisatio nand unpaired electrons in [Fe(H_2O)_6]^(2+) ion are

The hybrid orbitals are at angle of X^@ to one another ' this statement is not valid for which of the following hybridisation.

The human body does not produce

The human body does not produce:

The huge amount of energy which is released during atomic fission is due to

The human body does not produce :

The hottst part of the blast furnace is

The hot waste gases escapes from Bessemer converter are

The hot waste gases escape from blast furance are

The hormones that regulates glucose level in blood are ……………………….

The hormones which controls the presence of burning of fats, proteins, and carbohydrate and liberates energy in the body is

The hormones that mediates the response to external stimuli are ………………..

The hormone which transport glucose form blood to tissue is

The hormone which maintains blood sugar level is :

The hormone which is secreted in the pancreas and controls the metabolism of glucose in the body is

The hormone which controls the processes of burning of fats , proteins and carbohydrates and liberates energy in the body is

The hormone which controls the uterine cycle in women is

Cryoscopy is related with

The hormone thyroxine:

The hormone used as an oral contraceptive is :

The hormone responsible for bolting is _____

The hormone thyroxine

The hormone thyroxin is involved in

The hormone that maintains the level of excretion of salt and water by kidney is ………………….