Questions

Q:

The oxidation number of Cr in K2Cr2O7 is

A) +6 B) -5
C) +3 D) -4
 
Answer & Explanation Answer: A) +6

Explanation:

We will rewrite the formula as an equation.

2K + 2Cr + 7O = 0

The zero comes from there being no overall charge on the compound.

Each oxidation number is represented by the element's symbol.

Since this compound is not a peroxide or superoxide, the oxidation value for O is -2

K being in group 1 has a +1 charge and therefore has an oxidation number of K is +1

Now, by putting known values in we have:

2(+1) + 2(Cr) + 7(-2) = 0

2 + 2Cr -14 = 0

2Cr = +12

Cr = +6.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

13 6790
Q:

The first-ever World Tuna Day (WTD) is observed by the United Nations (UN) on which date  ?

A) May 2, 2017 B) May 1, 2017
C) April 2, 2017 D) May 3, 2017
 
Answer & Explanation Answer: A) May 2, 2017

Explanation:

The United Nations has marked the first World Tuna Day (WTD) on May 2, 2017 to conserve one of the globe’s most popular fish to be caught and eaten and to highlight the vital socio-economic importance of tuna to people around the world. Tuna plays a critical role in sustainable development, food security, economic opportunity, and livelihoods of people around the world. At present more than 80 States have tuna fisheries, thousands of tuna fishing vessels operate in all the oceans and tuna fishery capacity is still growing in the Indian and Pacific Oceans. The Day was designated in December 2016 resolution of the UN General Assembly.

Report Error

View Answer Report Error Discuss

Filed Under: Important Days and Years
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

4 6787
Q:

Write a c program for linear search.

Answer

#include<stdio.h>
int main(){

    int a[10],i,n,m,c=0;

    printf("Enter the size of an array: ");
    scanf("%d",&n);

    printf("Enter the elements of the array: ");
    for(i=0;i<=n-1;i++){
         scanf("%d",&a[i]);
    }

    printf("Enter the number to be search: ");
    scanf("%d",&m);
    for(i=0;i<=n-1;i++){
         if(a[i]==m){
             c=1;
             break;
         }
    }
    if(c==0)
         printf("The number is not in the list");
    else
         printf("The number is found");

    return 0;
}

Sample output:
Enter the size of an array: 5
Enter the elements of the array: 4 6 8 0 3
Enter the number to be search: 0
The number is found

Report Error

View answer Workspace Report Error Discuss

Subject: Programming

2 6787
Q:

Who is the Indian Classical dancer credited with the first female dancer to learn Chhau form ?

Answer

Sonal Mansingh

Report Error

View answer Workspace Report Error Discuss

9 6785
Q:

Syadvad is a doctrine of

A) Lokayatism B) Saivism
C) Jainism D) Vaishnavism
 
Answer & Explanation Answer: C) Jainism

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian History

7 6785
Q:

What is the currency of Indonesia?

A) rupiah B) dinar
C) rangit D) riyal
 
Answer & Explanation Answer: A) rupiah

Explanation:

Currency of Indonesia is rupiah

Report Error

View Answer Report Error Discuss

Filed Under: General Awareness

30 6784
Q:

Rearrange the parts of the sentence in correct order.

Even more astonishingly,

P-he cast as "beautiful"
Q-he went on to
R-describe the vote

 

A) RQP B) RPQ
C) PRQ D) QRP
 
Answer & Explanation Answer: D) QRP

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 6782
Q:

The sampling distribution of a statistic is

 

 

A) A normal curve, for which probabilities are obtained by standardizing.  B) A distribution of all possible summary statistics from a single random sample, from the same population.
C) A distribution of all parameters from the population that is to be randomly sampled. D) The mechanism that determines whether the random sampling was effective. 
 
Answer & Explanation Answer: A) A normal curve, for which probabilities are obtained by standardizing. 

Explanation:

The sampling distribution of a statistic is the distribution of the statistic for all possible samples from the same population of a given size.

 

Report Error

View Answer Report Error Discuss

Filed Under: Indian Economy
Exam Prep: Bank Exams

3 6782