In solutions as ionic concentration increases a non-ideal condition arises. To account for this non-ideal condition due to the ion-ion interaction what is the effective concentration term called as?

Given below are characteristics of an “ionic compound”. Identify the option that gives INCORRECT information. A. Ionic compounds are generally found in solid state. B. Ionic compounds have low melting point and high boiling point. C. Ionic compounds are soluble in solvents like benzene, etc. D. The X-ray analysis of ionic compounds reveals that they exist as molecules.

A

A, B and C

B

A and B

C

B, C and D

D

C and D

In a survey conducted over a group of people, it was found that 65% of them have a Facebook account, 40% of them have an Instagram account and 25% of them have a Twitter account. It was also concluded that 20% have an account on both Facebook and Instagram, 12% have an account on both Instagram and Twitter and 14% have an account on both Facebook and Twitter. If 8% of the people had an account on all the three websites, what percentage of the people do not have an account on any of the three websites?

A

4%

B

8%

C

12%

D

16%

Chemical and Ionic Equilibrium mcq question image

According to the Ehrenfest classification of phase transition the above diagram refers to

A

zeroth order phase transition

B

first order phase transition

C

second order phase transition

D

λ transition

Three molecular ionic states, P-R are possible for the amino acid histidine. Identify the correct choice of pH values, respectively for the observation of the ionic states P-R.
Basics of Organic Reaction Mechanism mcq question image

Basics of Organic Reaction Mechanism mcq question image

A

P at pH 1; Q at pH 12; R at pH 7

B

P at pH 7; Q at pH 1; R at pH 12

C

P at pH 12; Q at pH 7; R at pH 1

D

P at pH 12; Q at pH 1; R at pH 7

With reference to ionic compounds, consider the following statements.
1. Ionic compounds are insoluble in alcohol.
2. Ionic compounds in the solid state are a good conductor of electricity.
Which of these statements is/are correct?

A

Only 1

B

Only 2

C

Both 1 and 2

D

Neither 1 nor 2

With reference to ionic compounds, consider the following statements.
1. Ionic compounds are insoluble in alcohol.
2. Ionic compounds in the solid state are good conductor of electricity.
Which of the statement given above is/are correct?

A

Only 1

B

Only 2

C

Both 1 and 2

D

Neither 1 nor 2

Consider the following table named 'account' . What is the correct SQL to get all the account information of 'Motijheel' branch. Account ID 10001 10002 10003 Account Holder Md. Humaun Kabir Ruhul Amin Aminul Hossain Account type Savings Savings Business Branch Motijheel Uttara Motijheel

A

SELECT * FROM account

B

SELECT * FROM Account WHERE Branch =Motijheel

C

SELECT * FROM account WHERE Branch = Motijheel

D

SELECT ALL FROM Account WHERE Branch = Motijheel

Re-arrange the following sentences into a meaningful paragraph. (A) comes into effect from today. The bank's savings account rate was 3.5 per cent during March 2003 to May 2011 for all savings bank account customers (B) The bank's decision comes two days ahead of RBI's monetary policy meet and is likely to trigger (C) with deposits of above Rs 1 crore, it said in a statement. The two-tier savings bank account interest rate (D) to 3.5 per cent, lowest in six years, a decision that will impact 90 per cent of its customers (E) The country's largest lender however will continue to pay 4 per cent interest on savings bank accounts (F) SBI today cut interest rate on savings bank account deposits up to Rs 1 crore by 0.5 per cent (G) rate war among peers. SBI's savings bank account base is of around Rs 9 lakh crore.

A

BDFACEG

B

BFDCAGE

C

EGACDFB

D

FDBGECA

Engines are rated at specified conditions. Then which of the following statements are correct? 1. Power developed increases as local temperature increases. 2. Power developed increases as local temperature decreases 3. Power developed is not dependent on local temperature. 4. Power developed increases as local atmospheric pressure increases. 5. Power developed increases as local atmospheric pressure decreases.

A

1 and 4

B

3 and 4

C

3 and 5

D

2 and 4

Which of the following is/are correct regarding Operation Twist? Simultaneous buying and selling of short term and long term bonds respectively Here the bond price increases and yield rate also increases Here the bond price decreases and yield rate increases Simultaneous buying and selling of long term and short term bonds respectively Select the correct answer using the code

A

1 and 3 only

B

3 only

C

1 and 2 only

D

3 and 4 only

In solutions as ionic concentration increases a non-ideal condition arises. To account for this non-ideal condition due to the ion-ion interaction what is the effective concentration term called as?

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