15280 + Interview Questions in Chemistry Page 276 InterviewSolution

13751.	The IUPAC name of the following compound is? CH3−CH3−CH(CH2−CH3)−CH2−CH(CH3)−CH3
Answer» The IUPAC name of the following compound is? $C H_{3} - C H_{3} - C H (C H_{2} - C H_{3}) - C H_{2} - C H (C H_{3}) - C H_{3}$

13751.

The IUPAC name of the following compound is? CH3−CH3−CH(CH2−CH3)−CH2−CH(CH3)−CH3

Answer»

The IUPAC name of the following compound is?

$C H_{3} - C H_{3} - C H (C H_{2} - C H_{3}) - C H_{2} - C H (C H_{3}) - C H_{3}$

Discussion

13752.	The factor which does not cause a shift in chemical equilibrium is:
Answer» The factor which does not cause a shift in chemical equilibrium is:

Discussion

13753.	Which of the following reaction is irreversible in nature?
Answer» Which of the following reaction is irreversible in nature?

Discussion

13754.	Element x is strongly electropositive and y is strongly electronegative. Both element are univalent, the compounds formed from their combination will be
Answer» Element x is strongly electropositive and y is strongly electronegative. Both element are univalent, the compounds formed from their combination will be

13754.

Element x is strongly electropositive and y is strongly electronegative. Both element are univalent, the compounds formed from their combination will be

Answer»

Element x is strongly electropositive and y is strongly electronegative. Both element are univalent, the compounds formed from their combination will be

Discussion

13755.	(a) Explain what you would observe and its equation for what happens when a nitrate is heated strongly. (b) 1. Fill in the blank spaces in the following statements : Most of the nitric acid today is manufactured by Ostwald's process. In this process a mixture of pure dry ammonia and air in the ratio of ...... by volume is first compressed and then passed over ..... at about ...... ∘C. This results in the oxidation of ammonia into ....... which combines with ..... of the air to give ...... . This is an acidic gas from which nitric acid can be obtained by simply dissolving in ....... . 2. Give all the equations involved in the above process. [5 MARKS]
Answer» (a) Explain what you would observe and its equation for what happens when a nitrate is heated strongly. (b) 1. Fill in the blank spaces in the following statements : Most of the nitric acid today is manufactured by Ostwald's process. In this process a mixture of pure dry ammonia and air in the ratio of ...... by volume is first compressed and then passed over ..... at about ...... $^{\circ} C$ . This results in the oxidation of ammonia into ....... which combines with ..... of the air to give ...... . This is an acidic gas from which nitric acid can be obtained by simply dissolving in ....... . 2. Give all the equations involved in the above process. [5 MARKS]

Discussion

13756.	Which of the following is a property of most plastics such as PET and Teflon?
Answer» Which of the following is a property of most plastics such as PET and Teflon?

Discussion

13757.	Carboxylic acids are obtained from alcohols by -
Answer» Carboxylic acids are obtained from alcohols by -

Discussion

13758.	How many molecules of H2 gas are present in a container of dimensions 2 m × 2 m × 3 m at STP?
Answer» How many molecules of $H_{2}$ gas are present in a container of dimensions 2 m $\times$ 2 m $\times$ 3 m at STP?

Discussion

13759.	The rechargeable battery used in a mobile phone hand set is usually: (a) Lead ion battery (b) Sodium ion battery (c) Hydrogen ion battery (d) Lithium-ion battery
Answer» The rechargeable battery used in a mobile phone hand set is usually: (a) Lead ion battery (b) Sodium ion battery (c) Hydrogen ion battery (d) Lithium-ion battery

13759.

The rechargeable battery used in a mobile phone hand set is usually: (a) Lead ion battery (b) Sodium ion battery (c) Hydrogen ion battery (d) Lithium-ion battery

Answer»

The rechargeable battery used in a mobile phone hand set is usually:
(a) Lead ion battery

(b) Sodium ion battery

(c) Hydrogen ion battery

(d) Lithium-ion battery

Discussion

13760.	Calculate the solubility product of PbCl2 at a certain temperature if the solubility of PbCl2 is 4.4g/L at the same temperature. (Given: molar masses in g, Pb = 207, Cl = 35.5)
Answer» Calculate the solubility product of $P b C l_{2}$ at a certain temperature if the solubility of $P b C l_{2}$ is $4.4 g / L$ at the same temperature. (Given: molar masses in $g$ , $P b$ = 207, $C l$ = 35.5)

Discussion

13761.	Name the ions furnished by : (a) bases in solution, (b) an acid.
Answer» Name the ions furnished by : (a) bases in solution, (b) an acid.

13761.

Name the ions furnished by : (a) bases in solution, (b) an acid.

Answer»

Name the ions furnished by :

(a) bases in solution, (b) an acid.

Discussion

13762.	Write the test for the gas which is evoled when hydrochloric acid reacts with an active metal.
Answer» Write the test for the gas which is evoled when hydrochloric acid reacts with an active metal.

Discussion

13763.	An element of group 14 has an atomic number of 14. State whether this element will have metallic properties or not.
Answer» An element of group 14 has an atomic number of 14. State whether this element will have metallic properties or not.

Discussion

13764.	State Kohlrausch's law of independent migration of ions. Why does the conductivity of a solution decrease with dilution?
Answer» State Kohlrausch's law of independent migration of ions. Why does the conductivity of a solution decrease with dilution?

Discussion

13765.	Why do alcohol and glucose not conduct electricity although they have hydrogen atom? ( please give an elaborated answer which I can write in the board exam)
Answer» Why do alcohol and glucose not conduct electricity although they have hydrogen atom? ( please give an elaborated answer which I can write in the board exam)

Discussion

13766.	Toys that are considered eco-friendly are those that
Answer» Toys that are considered eco-friendly are those that

Discussion

13767.	How is common salt obtained from sea - water ?
Answer» How is common salt obtained from sea - water ?

Discussion

13768.	The compounds with alkoxy group are known as
Answer» The compounds with alkoxy group are known as

Discussion

13769.	What is the formula for the homologous series of alcohols that can be formed with alkanes?
Answer» What is the formula for the homologous series of alcohols that can be formed with alkanes?

Discussion

13770.	What specific characteristic of alkane is suggested when their vapors, cause severe damage to lung tissue by dissolving the fatty material in cell membranes?
Answer» What specific characteristic of alkane is suggested when their vapors, cause severe damage to lung tissue by dissolving the fatty material in cell membranes?

Discussion

13771.	In Modern Periodic Table, between which elements is an ionic bond formed?
Answer» In Modern Periodic Table, between which elements is an ionic bond formed?

Discussion

13772.	Which of the following is an artificial ecosystem? (a) pond (b) crop field (c) lake (d) forest
Answer» Which of the following is an artificial ecosystem? (a) pond (b) crop field (c) lake (d) forest

13772.

Which of the following is an artificial ecosystem? (a) pond (b) crop field (c) lake (d) forest

Answer»

Which of the following is an artificial ecosystem?

(a) pond

(b) crop field

(c) lake

(d) forest

Discussion

13773.	A solution of ammonium cyanide is
Answer» A solution of ammonium cyanide is

Discussion

13774.	From the following information, calculate capital at the beginning: Items (Rs.)Capital at the end of the year4,00,000Drawing made during the year 60,000Fresh capital introduced during the year1,00,000Profit of the current year 80,000
Answer» From the following information, calculate capital at the beginning: $\begin{matrix} Items & (R s .) Capital at the end of the year & 4, 00, 000 Drawing made during the year & 60, 000 Fresh capital introduced during the year & 1, 00, 000 Profit of the current year & 80, 000 \end{matrix}$

13774.

From the following information, calculate capital at the beginning: Items (Rs.)Capital at the end of the year4,00,000Drawing made during the year 60,000Fresh capital introduced during the year1,00,000Profit of the current year 80,000

Answer»

From the following information, calculate capital at the beginning:

$\begin{matrix} Items & (R s .) Capital at the end of the year & 4, 00, 000 Drawing made during the year & 60, 000 Fresh capital introduced during the year & 1, 00, 000 Profit of the current year & 80, 000 \end{matrix}$

Discussion

13775.	Write the uses of gold, mercury and zinc. [3 MARKS]
Answer» Write the uses of gold, mercury and zinc. [3 MARKS]

Discussion

13776.	The term 'Isomerism' applies to organic compounds with the same __.
Answer» The term 'Isomerism' applies to organic compounds with the same __.

Discussion

13777.	When zinc metal react with dilute sulphuric acid produces which gas .Write the chemical equation of the above reaction
Answer» When zinc metal react with dilute sulphuric acid produces which gas . Write the chemical equation of the above reaction

13777.

When zinc metal react with dilute sulphuric acid produces which gas .Write the chemical equation of the above reaction

Answer»

When zinc metal react with dilute sulphuric acid produces which gas .

Write the chemical equation of the above reaction

Discussion

13778.	Silver chloride and silver bromide are used in black and white photography.Which of the following are correct in regard to these reactions? (i) Energy in the form of light is required for the reactions to occur. (ii) Both the reactions are endothermic. (iii) Only silver chloride decomposes into solid metal and non - metal gas. (iv) Both compounds decompose into their respective metal and non - metal gases.
Answer» Silver chloride and silver bromide are used in black and white photography.Which of the following are correct in regard to these reactions? (i) Energy in the form of light is required for the reactions to occur. (ii) Both the reactions are endothermic. (iii) Only silver chloride decomposes into solid metal and non - metal gas. (iv) Both compounds decompose into their respective metal and non - metal gases.

13778.

Silver chloride and silver bromide are used in black and white photography.Which of the following are correct in regard to these reactions? (i) Energy in the form of light is required for the reactions to occur. (ii) Both the reactions are endothermic. (iii) Only silver chloride decomposes into solid metal and non - metal gas. (iv) Both compounds decompose into their respective metal and non - metal gases.

Answer»

Silver chloride and silver bromide are used in black and white photography.Which of the following are correct in regard to these reactions?

(i) Energy in the form of light is required for the reactions to occur.

(ii) Both the reactions are endothermic.

(iii) Only silver chloride decomposes into solid metal and non - metal gas.

(iv) Both compounds decompose into their respective metal and non - metal gases.

Discussion

13779.	Draw the structures of the following compounds: [5 MARKS] (a) Prop-1-ene (b) 2, 3-Dimethylbutane (c) 2-Methylpropane (d) 3-Hexene (e) Prop-1-yne
Answer» Draw the structures of the following compounds: [5 MARKS] (a) Prop-1-ene (b) 2, 3-Dimethylbutane (c) 2-Methylpropane (d) 3-Hexene (e) Prop-1-yne

Discussion

13780.	Distinguish between base and alkaline
Answer» Distinguish between base and alkaline

Discussion

13781.	Soil formation is done by both abiotic and biotic.click the names of these factors by classifying them as abiotic and biotic
Answer» Soil formation is done by both abiotic and biotic.click the names of these factors by classifying them as abiotic and biotic

Discussion

13782.	What do you understand by Vital Force theory
Answer» What do you understand by Vital Force theory

Discussion

13783.	Does pH play an important role in normal functioning of human body? Justify.
Answer» Does pH play an important role in normal functioning of human body? Justify.

Discussion

13784.	An atom with high electronegativity has
Answer» An atom with high electronegativity has

Discussion

13785.	Which of the following statement(s) is are correct? i. An inverted funnel arrangement is used in the laboratory preparation of hydrochloric acid. ii. HCl gas is insoluble in water.
Answer» Which of the following statement(s) is are correct? i. An inverted funnel arrangement is used in the laboratory preparation of hydrochloric acid. ii. HCl gas is insoluble in water.

13785.

Which of the following statement(s) is are correct? i. An inverted funnel arrangement is used in the laboratory preparation of hydrochloric acid. ii. HCl gas is insoluble in water.

Answer»

Which of the following statement(s) is are correct?

i. An inverted funnel arrangement is used in the laboratory preparation of hydrochloric acid.

ii. HCl gas is insoluble in water.

Discussion

13786.	NaOH+H2So4=Na2So4+H2o
Answer» NaOH+H2So4=Na2So4+H2o

Discussion

13787.	What happens when quick lime is added to water?
Answer» What happens when quick lime is added to water?

Discussion

13788.	State what is observed when an excess of ammonia is passed through an aqueous solution of lead nitrate.
Answer» State what is observed when an excess of ammonia is passed through an aqueous solution of lead nitrate.

Discussion

13789.	Difference Between chemical bond and chemical bonding
Answer» Difference Between chemical bond and chemical bonding

Discussion

13790.	Which of the following is used for disinfecting drinking water to make it free from germs?
Answer» Which of the following is used for disinfecting drinking water to make it free from germs?

Discussion

13791.	Which of the following are examples of chemical reaction?
Answer» Which of the following are examples of chemical reaction?

Discussion

13792.	Which among the following group of elements does not form a Dobernier triad?
Answer» Which among the following group of elements does not form a Dobernier triad?

Discussion

13793.	Which one of the following reactions is not associated with the Solvay process of manufacture of sodium carbonate?
Answer» Which one of the following reactions is not associated with the Solvay process of manufacture of sodium carbonate?

Discussion

13794.	Structurally, chlorophyll a and b are different as
Answer» Structurally, chlorophyll a and b are different as

13794.

Structurally, chlorophyll a and b are different as

Answer»

Structurally, chlorophyll a and b are different as

Discussion

13795.	What do you observe when sugar crystals are added to hard glass test tube containing conc. sulphuric acid?
Answer» What do you observe when sugar crystals are added to hard glass test tube containing conc. sulphuric acid?

Discussion

13796.	A certain mass of substance, when dissolved in 100 g C6H6, lowers the freezing point by 1.28∘ C. The same mass of solute dissolved in 100 g water lowers the freezing point by 1.40∘ C. If the substance has normal molecular weight in benzene and is completely ionized in water, into how many ions does it dissociate in water? Kf for H2O and C6H6 are 1.86 and 5.12 K kg mol–1.
Answer» A certain mass of substance, when dissolved in 100 g $C_{6} H_{6}$ , lowers the freezing point by ${1.28}^{\circ} C$ . The same mass of solute dissolved in 100 g water lowers the freezing point by ${1.40}^{\circ} C$ . If the substance has normal molecular weight in benzene and is completely ionized in water, into how many ions does it dissociate in water? $K_{f}$ for $H_{2} O$ and $C_{6} H_{6}$ are 1.86 and 5.12 K kg $m o l^{- 1}$ .

Discussion

13797.	A student adds 4 mL of acetic acid to a test tube containing 4 mL of distilled water. He then shakes the test tube and leaves it to settle. After about 10 minutes he observes:
Answer» A student adds 4 mL of acetic acid to a test tube containing 4 mL of distilled water. He then shakes the test tube and leaves it to settle. After about 10 minutes he observes:

Discussion

13798.	A reaction where two or more elements or compounds combine to form a single compound is called as a ___reaction.
Answer» A reaction where two or more elements or compounds combine to form a single compound is called as a ___reaction.

Discussion

13799.	Oxidation state of S in [HSO4]− is
Answer» Oxidation state of S in $[H S O_{4}]^{-}$ is

Discussion

13800.	In a voltaic cell using copper and zinc as electrodes, which of the following is true?
Answer» In a voltaic cell using copper and zinc as electrodes, which of the following is true?

Discussion

Explore topic-wise InterviewSolutions in .

The IUPAC name of the following compound is? CH3−CH3−CH(CH2−CH3)−CH2−CH(CH3)−CH3

The factor which does not cause a shift in chemical equilibrium is:

Which of the following reaction is irreversible in nature?

Element x is strongly electropositive and y is strongly electronegative. Both element are univalent, the compounds formed from their combination will be

Which of the following is a property of most plastics such as PET and Teflon?

Carboxylic acids are obtained from alcohols by -

How many molecules of H2 gas are present in a container of dimensions 2 m × 2 m × 3 m at STP?

The rechargeable battery used in a mobile phone hand set is usually: (a) Lead ion battery (b) Sodium ion battery (c) Hydrogen ion battery (d) Lithium-ion battery

Calculate the solubility product of PbCl2 at a certain temperature if the solubility of PbCl2 is 4.4g/L at the same temperature. (Given: molar masses in g, Pb = 207, Cl = 35.5)

Name the ions furnished by : (a) bases in solution, (b) an acid.

Write the test for the gas which is evoled when hydrochloric acid reacts with an active metal.

An element of group 14 has an atomic number of 14. State whether this element will have metallic properties or not.

State Kohlrausch's law of independent migration of ions. Why does the conductivity of a solution decrease with dilution?

Why do alcohol and glucose not conduct electricity although they have hydrogen atom? ( please give an elaborated answer which I can write in the board exam)

Toys that are considered eco-friendly are those that

How is common salt obtained from sea - water ?

The compounds with alkoxy group are known as

What is the formula for the homologous series of alcohols that can be formed with alkanes?

What specific characteristic of alkane is suggested when their vapors, cause severe damage to lung tissue by dissolving the fatty material in cell membranes?

In Modern Periodic Table, between which elements is an ionic bond formed?

Which of the following is an artificial ecosystem? (a) pond (b) crop field (c) lake (d) forest

A solution of ammonium cyanide is

From the following information, calculate capital at the beginning: Items (Rs.)Capital at the end of the year4,00,000Drawing made during the year 60,000Fresh capital introduced during the year1,00,000Profit of the current year 80,000

Write the uses of gold, mercury and zinc. [3 MARKS]

The term 'Isomerism' applies to organic compounds with the same __.

When zinc metal react with dilute sulphuric acid produces which gas .Write the chemical equation of the above reaction

Draw the structures of the following compounds: [5 MARKS] (a) Prop-1-ene (b) 2, 3-Dimethylbutane (c) 2-Methylpropane (d) 3-Hexene (e) Prop-1-yne

Distinguish between base and alkaline

Soil formation is done by both abiotic and biotic.click the names of these factors by classifying them as abiotic and biotic

What do you understand by Vital Force theory

Does pH play an important role in normal functioning of human body? Justify.

An atom with high electronegativity has

Which of the following statement(s) is are correct? i. An inverted funnel arrangement is used in the laboratory preparation of hydrochloric acid. ii. HCl gas is insoluble in water.

NaOH+H2So4=Na2So4+H2o

What happens when quick lime is added to water?

State what is observed when an excess of ammonia is passed through an aqueous solution of lead nitrate.

Difference Between chemical bond and chemical bonding

Which of the following is used for disinfecting drinking water to make it free from germs?

Which of the following are examples of chemical reaction?

Which among the following group of elements does not form a Dobernier triad?

Which one of the following reactions is not associated with the Solvay process of manufacture of sodium carbonate?

Structurally, chlorophyll a and b are different as

What do you observe when sugar crystals are added to hard glass test tube containing conc. sulphuric acid?

A student adds 4 mL of acetic acid to a test tube containing 4 mL of distilled water. He then shakes the test tube and leaves it to settle. After about 10 minutes he observes:

A reaction where two or more elements or compounds combine to form a single compound is called as a ___reaction.

Oxidation state of S in [HSO4]− is

In a voltaic cell using copper and zinc as electrodes, which of the following is true?